A little while after I first started smoking, I'd started to get really cocky about my "tolerance" for weed and how I could smoke a fat bowl out of my pipe and get just noticeably high... Then one night I was with a few friends, and I took out the waterfall I had made the previous night and wanted to try out. I put in about how much usually gets me pleasantly high... Torched the fuck out of the bowl with my new torch lighter to prepare one hell of a hit, and hit half the bottle, passing the rest onto a friend.

At that time, I could take pretty damn big hits out of a small (1.5 inch long) pipe that hit harsh as hell and not cough... That hit, half a waterfall's worth, hit me almost immediately and I was coughing for at least 5 minutes, and that night was my first bad high ever... Waterfalls are crazy shit. Still scared to go near the thing until my tolerance gets a lot higher.

If a waterfall you made isn't knocking you flat on your ass, you've probably made it wrong. My first waterfall was decent, but there wasn't an airtight seal between the bowl and the cap, and the smoke that was in the bottle was kind of transparent. I revised it, made it airtight, and the next time I tried it (the night described above) I could've sworn the smoke in the bottle was solid.