if he was sitting beside you and he peed i'm thinking
you missed his signal. he squatted to pee and you
and your neighbor missed it.
He goes out a lot and I mean a lot. We are pretty steady with his schedule. When he wants to go out he usually whines and we know. Yesterday not a single whine and he was sitting by legs for 20 minutes. Then I just happened to look down at him and saw a nice puddle.