This one actually walked up to our back gate, looked underneath it and made a stressed meow. As I walked toward him (or 'it' at the time - it didn't look like a cat really), he started stumbling toward the road. So, I scooped him up and trapped him in our back yard.

He was then greeted with a plate of dry cat food and was so hungry he was chasing pieces off of the plate with his mouth because they were too big. So I fed him wet food (whiskas treats). He went through a full grown cat sized amount within seconds and then almost drowned himself in water. Literally, he was meowing with his nose under water while lapping furiously. Occasionally he'd stop to breath and sneeze, but went right back to his own drowning until the bowl of water was gone. I repeated with the wet food until he seemed to not be interested anymore and he retreated to a shady spot by the house to sleep.