Never seen anyone do so many curls before. He had his music on full blast, I could even hear his music from the other side of the room even with the gym's music being loud. First off went to get some db's and started doing some curls, then some concentration curls and then he went to the fixed barbell rack, picked up a barbell and did some more curls. I was then doing my set and and did'nt think anymore of it. While benching I could hear his music coming closer, he walked behind me, while thinking he was going to do something productive and go to the dip station, he ended going to the squat rack and started to curl, put about 5kg over each side. I could hear him huffing and puffing. When he finished he walked back and grabbed a fixed barbell and started doing even more curls which looked about 30kg, the same weight as he used in the squat rack. He then did some cable curls. After that a superset of curls with cable push down's and about one set of db overhead tricep extensioms, some db bicep curls and did about one set on some machine and left.