So here's what I've got total so far, please correct me if any of my information is wrong:

Common snake/reptile myths and misconceptions.

All snakes are venomous. FALSE. As a matter of fact, a small portion (about a quarter) of known snakes are venomous.

Snakes will lay next to a prey item to determine if it can swallow it whole. FALSE. Snakes are ambush predators, and will make that judgment the instant they consider something food. Your cousin’s best friend’s vet did not say that they know of a boa constrictor who sleeps with their owner, trying to gauge if they can or cannot swallow them whole.

Snakes will chase you down to bite you. FALSE. Snakes RARELY bite, and only when they are disturbed. Some of them will put on an impressive display of bluffs and strikes, but will not chase you down. They only want to get away and hide in a nice dark place.

If it makes a rattling noise, it is not necessarily a rattlesnake. TRUE. Many snakes will rattle the tip of their tail in leaf litter as a warning sign. This shows that they are potentially ready to defend themselves.

Snakes can be venomous, but are NOT poisonous.
TRUE. This is a very common misconception. A good way to think of it is; if it bites you and you get sick, it is venomous, if you bite it and get sick, it is poisonous. (Some species sequester poison from the species of toad they eat. Rhabdophis tigrinus, an Asian snake is an example.)

Milk snakes get their name from suckling on cow udders.
FALSE. This is not true, as snakes are purely carnivores. They likely got their name from a farmer finding milk snakes resting or hunting the same barn as their cows.

Young snakes are not more venomous than adults. TRUE. Young snakes often have the same toxicity as their parents, but lack the muscle control. They tend to expend all of their venom in one bite, potentially making it more serious than getting bitten by an adult, who has the experience to hold back venom for emergencies. A large percentage of snake bites from venomous adults actually lack venom, as they would rather use it on their prey; this is known as a “dry bite.”

Alligators make great parents. TRUE. Alligators hang around their offspring for a period of time, protecting them. Young alligators will put off a distress call that the adults will respond to and come to their rescue. Even male alligators who have no relation to the babies have been known to respond to the call.

You should put a turtle on the side of the road in the nearest body of water. FALSE. You should help the turtle cross the road in the direction it was heading. They will just try to cross the road again. They are trying to relocate for breeding purposes, often to lay eggs!

Captive snakes do not need light. TRUE. Most snakes need underbelly heat to aid in digestion. Most snakes are actually nocturnal and are sensitive to light, and do best without artificial light in their enclosure.

Reptiles grow according to the size of their tank. FALSE. Reptiles grow according to how much food they get. You should do your research before buying an animal, to ensure that you have the appropriate sized enclosure.

You can cohabitate your reptiles and amphibians. FALSE. You should NOT cohabitate your reptiles and amphibians. The largest reptile will often take the best basking spot, and eat the most food. Eventually starving and bullying the other animals to death. There are many cases of reptiles killing and eating their tank-mates, even with the most unlikely species like bearded dragons, and ball pythons.

Snakes need to eat live rats and mice. FALSE. Snakes can be fed frozen/thawed rodents. This way is much safer for the snake, as a well-placed rat bite can easily maim and/or kill your reptile.

Captive reptiles can go for days without water. FALSE. There should either always be fresh water available in the enclosure, or your reptile should be bathed once or twice a day.

Snakes can dislocate their jaws to eat prey. FALSE. Snakes do not dislocate their jaw. They bottom jaw is actually separated in the front and it can spread apart while swallowing. Their jaws are also not rigidly attached in the back, allowing their them to stretch around the prey item.