These two things happen to me all the time...At the hospital I work at, I sit with the safety precaution patients all day. So, whenever a nurse or doctor enters the room or switch shift they ask for ID. Whenever I go to the store I have a bad habit of carrying my ID with me; sometimes I even try to use it instead of pulling out my bank card.
Another one is when someone call to ask me to go with them somewhere. I always go and put on my scrubs, then, when I go to put on sneakers is when I realize I have on the wrong clothes.