There are too many people these days with their "heads in the gutter," which means that whenever someone says something, they immediately relate it to something sexual. It's not exactly being perverted, but it's similar.
I have a friend like that. *AHEM* You know who you are.
People need to stop doing that. I can't always avoid saying things that could be taken the wrong way. Sometimes, you just need to say "do you have the ball?" and I don't always feel like rephrasing it as to not get a sexual joke from my friend.