Unless he was dive mastering for your class or happened to be in the store when you were, you probably wouldn't have had an occasion to meet Chris.
When you have the gas it's always a good idea to take some extra time to get to the surface. However depending on the dive profile, adding that time in too deep will actually increase your nitrogen loading. You can extend your shallow stops with no adverse effect, so stopping for a minute or so at 50' and then spending extra time above 30' would probably have been more beneficial than adding 5 minutes at 50'. YMMV.
PS- I'm telling Randy he's "short", "bald", and "husky" and Mark that he's "old"!