Well the grossest shit i did while high was probably the time when i had just finished smoking a few bowls out the bong and i was HIGH as hell and i remember leaving my room to go to the bathroom because i had to take a piss but my uncle was taking a shower so i just went to my room and waited for a few minutes but he was taking his sweet time and it was around 11pm so i looked out my window to make sure nobody was outside (i live in an apartment complex) and when i saw nobody i opened my window halfway then pulled down a few blinds with one hand and held my friend in the other and let it rip out the window
Well i dont really think it was gross, but sure has hell was the weirdest thing i ever did, it landed on this bush thats outside my window so its not like i could have hit anybody walking down the side walk it sure would have been weird if someone would have walked by and seen me