due to my past experiences, I WILL NEVER EVER DO THAT AGAIN

I've just sadly become very mistrusting of most unknown stoners [no offense]
I get to know em first, then I decide whether they can be smoked with or not.

plus there are a lot of risks involved with accepting random offers/freebies

The only person I say i may smoke with whom i might know well enough will be a regular dealer who shows and does good business, very occasionally