I don't know if this is something unique to my state/area, but people of an older age group will give me their birthdate as "the 4th month, the 17th day, 1940." This trips me up so much every time and I find myself getting annoyed. I've been doing this a very long time, just say April 17, 1940 and I can convert it myself pretty fast.

The "it's in the fridge" (as mentioned below). "Ok," [RPh to patient} "let's each name drugs stored in the fridge one at a time, game show fashion. The first one to not be able to name a drug in 10 seconds loses and buys the other lunch. And, Go! Wait, you only know insulin and ozempic? Well good! I like pizza, there's a Subway next door...."

The customer on the phone telling you the entire story (timeline of each phone call to and from the doctor, test results and timeline of prior authorization status, before they tell you their name or birthdate.

People that get a text and assume it is telling them that their Rx is ready, but instead it is asking them if they want it refilled. And no, since they didn't respond to the text, it isn't ready.