Just saw this on Thad's Animation Blog (actually, rewatched would be the better word since I first viewed this in the late '70s on afternoon television). In this one, the boys are gas station attendants who are doing "super service" on three professors on their way to a college they've been hired for. But the Stooges' inept errands has the car they're working on blowing up, so Moe, Larry, and Curly end up running for their lives. They then disguise themselves as those men as a case of mistaken identity ensues...Quite hilarious from beginning to end with the highlight being the "Swinging the Alphabet" number. Especially loved Curly's contribution and the girls' admonition of "Curly's a dope!" afterwards! Directed with great fun by comedian Charley Chase.