It can still be offensive to some people, doesn’t really matter who it was aimed at.
But it's best to actually figure out what's going on first before jumping to conclusions??
But either way isn't it still offensive and a rule break toward discramation and if it was done to a friend as a joke why do it in a public area?
Do you lock your friends into a building to make a joke?
I Didn't say lock into a building rather just go to somewhere where no one is and it worries me that your first thought is to "Lock someone into a building..."