When People Leave Without Saying Goodbye

When people (friends?) leave a social function without saying goodbye (and without saying thank you to organizers or people who drove a long way to attend). -S.C.

I invited you
Is saying goodbye so hard?
Ungrateful bastard

Acquaintances Who Move Without Saying Goodbye

Acquaintances who move without saying goodbye. - Anonymous

Did you think when you moved I'd not know?
A goodbye's not too hard to bestow
I feel kinda dissed
And now I am pissed
I'll have to cut you off like Van Gogh