What pun?

What do you think a pun is?

I see the very dark humour is not popular around here.

Sure it is. Saying shit you mean in earnest and then pretending it's a joke after the fact isn't. Gloating about dead children isn't either.

I wasn't asking you to explain the pun because I didn't find it funny, I was asking you to identify the pun because I did not find it period.