Don't smoke or give none of them to anyone. Trash basket for them. R I P. Sucks but its not healthy. Can cause serious lung issues. Plus it's nasty stuff.
I've only had bud rot twice. Once was my biggest fattest cola of all times (of course). Turned her around and had webs on it. The other time it was inside the bud and never surfaced. The inside of buds were brown and she never finished correctly. Even after being chopped it kept moisture and would never dry.
Once u've had it u become more vigilant on keeping humidity down during late flower and keeping an eye out for it.