Placing males near females?

Hello, ok I've heard that placing a male near females can make them start to "act out"...however i also know that males can makes females go to shit. Now can someone shed light on this?

males make females make seeds, kill them asap unless you want seeds

a male will ruin your female with seeds if you want seeds your fine

i know they can do that,but isnt it possible that females will try to reach to the male?

no, its not.

For sure. I didnt think so...but hey what about grafting strains? U guys know any truth to that. I've heard its possible but it takes like 12 weeks to kick in.

its really pointless to graft imo. marijuana has male and females and its easy to breed a few plants together, having 2 strains on one plant doesnt really do much good, why not just have 2 plants or breed the 2 two strains together?.