I myself was unfortunate enough to experience this first hand. Little backstory, I traveled a distance to visit a good friend and see a concert in town. He DJs at a popular night club in town. I decided to go with him there before I went to the concert.

So we're hanging out at the DJ booth, I've only a couple drinks (I tend to drink slower) and a group of girls come over. I start talking to one of them privately and she's being extra flirty. She then offers me a drink and I accept.

She comes back and we start dancing. About ~30 mins after, I feel really weird. ~45 mins I'm blacked out. Girl slipped something in my drink for god knows why. Don't recall anything after this.

Long story short, I unblacked out 6 hours later being arrested, my car wrecked, and a massive bruise on my forehead. Girl was nowhere to be found. Cop didn't believe I was drugged. Didn't even blow that high. And now I'm facing a bunch of expenses and criminal charges bc of some female.

Moral of the story: take generosity carefully. And always remember that there is some motive for that generosity in the first place, sinister or not. This applies to all women and men. No one is nice for no reason.

Edit: Friend pulled me out of bar (he thought I was acting weird) but then I guess I disappeared after that.

Edit: Excuse my grammar, I'm on my phone at work.