A man walks into a pharmacy, buys a condom, then walks
out of the store laughing hysterically.
The pharmacist thinks this is weird, but hey,
there's no law preventing weird people from buying
condoms. Who knows, maybe it's a good thing.

The next day, the same man comes back to the
store,purchases yet another condom,
and once again he leaves the store laughing wildly.
This piques the interest of the pharmacist.

"What could be so funny about buying a condom, anyway?"

So he tells his clerk "If this guy ever comes back,
I want you to follow him to see where he goes.
" Sure enough, the next day the same man is back,
he buys the condom, and again starts cracking up with laughter,
then leaves.

The pharmacist tells his clerk, go follow the guy.
About an hour later, the clerk comes back to the store.
"Did you follow him? Where did he go?" asks the pharmacist.

The clerk replies "Your house."