[atomic conspiracy]

I’ve met a couple of dozen fake SEALs, but only one real one.
I also met a fake B-52 pilot. He claimed he had been shot down during a secret mission in Cambodia but didn’t know how many crew positions a Buff has or why it is called a Buff.

[Stat-boy]

I have never met a fake SEAL; I find the need to lie like that very strange.

I am familiar with one, though I have not seen him in almost 20 years. He was a few years younger than me at college, and one heck of a tough rugby player.

[DuncanWaring]

...or why it is called a Buff.

Probably didn't even know it's "BUF", not "BUFF".

Good "trick question", though. ;-)