I saw a guy take 4 of them in a 3 hour time frame and he got an erection so bad that they had to carry him out on a stretcher. No lie-and this was on the job.
You know those old guys that brag about tricking on young women? This fool popped 2 in hour intervals, then the last 2 in the third hour. And that shit hit him out of nowhere. He came running out the bathroom with his pants around his ankles and laid in the floor with hard meats. A female coworker saw that shit and covered him with her sweater, then called the manager. And let me tell you, when they rolled his stupid ass out of there the whole crew was laughing at him, tent pitching under the stretcher sheet and all.