I saw a fairly normal looking dude come into the gym one day. He did warm-ups with 135lbs and 225 on the bench. Put 315 on and easily pumped out 6 reps, I was impressed. He then raised the weight to 365 and ask another guy for a spot. He tore a pec so bad with this weight that 911 was called. When the paramedics arived the couldn't get his blood pressure to stabilize, he was going into shock. They ended up starting an IV and taking him to the hospital.