Assuming you have a day dedicated to legs. Edit: I think I'm going to add a gym story to each one of the threads I start. I was doing arms at the gym tonight and some ~21 year old guy sits down next to me on a flat bench (I was on an incline), grabs a set of 40lb DB's, and looks over at me like "Yeah motherfucker, I'm doing this shit right." He proceeds to scream out a set of 7 reps (throwing his body into it mind you) as if he's pulling 600lb. I honestly thought it was a joke, so I started laughing while I was doing my DB curls. He finishes his set and goes "Are you laughing at me?" I was like "...yeah, you're making an awful lot of noise for what you're doing." He goes "Not cool man...not cool" and walked away.