My favorite joke in the world:
A shaddchan corners a yeshiva bochur and says, "Boy I have a girl for you!".
"Not interested", replies the bochur.
"But she's beautiful ! ", says the shaddchan
"Yeah?" says the bochur.
"Yes. And she's very rich too."
"And she has great yichus! From a very fine family."
"Sounds great." says the bochur. "But why would a girl like that want to marry me? . . . She'd have to be crazy."
Replies the shaddchan "Well, dats only a small thing, you can't expect everything!"