Actually, sometimes, my budget gets really really tight, almost
like a corset squeezing the life outta me! 
And in such occasions, when and if I get a dinner invitation, it
causes me more grief than anything. As a friend, I would be happy
for them, but the thought of forking out the money I can ill-afford
just to attend the dinner, leaves me in cold sweat. 
Things like that, they DO happen.