Some clarification on Joe Venuti triggering Roy Rogers horse Trigger erection. Being a professional violinist myself, yes Joe used his violin bow but what he actually did was take one or a couple of hairs and cut them 3/4 up the bow from the frog (bottom of bow where hand holds stick) so these hairs sticking forward from tip of bow were about 2-3 inches long. This is an old trick in orchestras to make player ahead of you think theres a bug on their neck or ear when you brush the hair against their skin. So, Joe was softly brushing Trigger's penis with the hair to bring it to erection and the rest is history!!!