I have personally seen a frame that was epoxied with the standard, hardware store variety junk. It was a mix of many broken frames. The guy cut good pieces from each and glued them together using hose clamps as back-up. Imagine a 260lb. guy trying to ride a pieced together contraption from rejected Cannondale frames. I dubbed it the "Frankendale". He was so bent on riding it that we worried for his safety (& ours!!) so we distracted him, took the whole bike and threw it into a far away dumpster, never to be seen again. We explained to him that it was for his own good and that someday he would understand and thank us.