LOL. Actually with a 45lb. bar that would be 95 lbs. if we're all to believe your sordid accusation of my weakness.
That's a very interesting aside note. I have found that lifting to overload is not so much a matter of psychology but my ability to release the weight safely following exhaustion. This means I cannot really work to overload with free weights, since I don't have a safe way to release the dumbell/barbell immediately following overload without it crashing to the floor or on my foot. So I warm up with free weights and then move to a machine for overload. For example, I can do a bicep curl on a cable machine and release the weight (as slowly as I can) so the machine catches it and it doesn't crash to the floor. A Smith machine is really a better example, but I haven't tried that yet.