There are a few things wrong with this strip. First, Harley's left headphone is way too far down in the first panel. Second, Billy's line of sight in the second panel points to the "-" sign when it should be at the "+." Third, the punch line's kinda weak. I guess it was a bad day for me when I drew this.
Hey guys! I'll be out of town for the weekend, so I'll be missing a post. Sorry, but it's not too long a wait, I hope!