Me personally I feel like shrooms are something to be taken alone (for me personally) there's a lot to unravel about it. But people can make me feel paranoid just by their presence. I have only known 2 people that don't make me freak out or get extreme paranoia around them.
On another note, shrooms I like the repeated loop effect but I believe it can be used as a date rape kinda of deal if you're around "Those" kinds of people due it's disorienting effects.