there's usually two sides. the BS'er and the listener. if i care about the listener, i will correct the BSer after he/she leaves. in my experience, you can never correct a BSer. usually I'll pull the listener aside and say "that guy was full of it -here are credible links to prove he was wrong" like the guy who told my friend he had an acura NSX 4 cylinder in his civic. "they only made the 4 cylinder in japan" and then "yeah, my 0-60 is good like 4.5 seconds, but i can go 60-120 in 2.5 seconds, that's where it really kicks in" 0-120 in 7 seconds... with a made up engine... that guy was adamant that he was correct too. some people...