Yeah I "used" a couple before... of course I was working undercover for a police department and everybody went to jail after... but hey... I had fun. And I didn't even take my pants off and get freaky.

My advice...

Well...

Let your buddy score up his own. I'm sure he's perfectly able to find his own company, and he won't have any souveniers (bail bond reciepts or nasty diseases) to worry about afterwards.