What floor do you live on?

I went downstairs to check my mail and got into the elevator going back up with two girls and guy in there. While hitting the button for my floor, I noticed that higher floor buttons were lit, and assumed that I was going to be the first one getting out of the elevator.

Elevator door opens and I get out of the elevator and so does the guy. I tell him that this is my floor, and he turns around and says..no, this is 3, and as the elevator door closed, the two girls in the elevator also tells me that it's 3. Too late. The guy goes back into his unit happily and i am left to press the up button for the elevator, grumbling to myself about how those girls should have held the elevator door for me.

Luckily, the next elevator comes almost immediately, and as i exited on my floor, I hear giggling coming from my hall way. The two girls that were in the elevator got out on my floor, thinking it was their floor and tried to put their key in my door, as they lived in the same unit but on higher floors.

We had a good laugh.