I have seen more people flip out drinking Tequilla and Gin than I ever have seen people that smoke Pot.
I've seen lots of fights started by drunks that never would've happened if they were sober. I've never seen anyone on pot start a fight that wouldn't have happened if they were sober. I've seen a lot of people on pot opt not to fight when they would've gone ballistic when sober.
The only flipping out on pot I've ever seen has been fits of hysterical laughter or anxiety over being caught and only in first time smokers and those largely giddy teens to begin with.
The ONLY people that I have ever seen 'flip out' while smoking pot were (DUH) drinking in excess as well. (or doing drugs other than alcohol)
Weird ain't it?