FDT compared "the dating game," and avoiding STD's like this:

"It's amazing, I can't even believe it. I've been so lucky in terms of that whole world, it is a dangerous world out there. It's like Vietnam, sort of. It is my personal Vietnam. I feel like a great and very brave soldier..."

and again:

"You know, if you're young, and in this era, and if you have any guilt about not having gone to Vietnam, we have our own Vietnam " it's called the dating game. Dating is like being in Vietnam. You're the equivalent of a soldier going over to Vietnam."

Both of these statements indicate, to me, that he absolutely contracted at least one STD. I'm sure veterans appreciate FDT's "sacrifice."