chyeah

I only say please if it's something I'm not paying for.

I only say "excuse me" if the bump/movement is my fault.

For example, if I'm exiting an elevator and some dickwad is trying to enter before letting me out I PURPOSEFULLY bump them really hard and say "LET. ME. OUT."

this needs a "I try to"

Of course.

Answered "no". Because those are not the only occasions I can say "please", "sorry", or "excuse me".

Sometimes in the wrong language =X

Always ^^ it's an immediate reaction.

Of course! :3 I still call people "Sir" or "ma'am" with people XD