There's also the danger that, what might seem like a sure fire funny joke to you, might not be appreciated the same way.
They might just think it was a bit mental.
Nah, I've known these guys for years. I know their families, their birthdays, the lot. We know each other very well and we all have the same messed up sense of humour.
@Diagro I went there once. For leisure. I paid actual money that I actually worked for to go there. Suffice to say it was a very educational experience.