I've seen so many examples of people getting that wake up call since I started with martial arts.Yep it's not always as obvious as it appears
The shouters and the pointers are not always the real thing
Every semester we have at least one big, talky type that comes in all full of ego... only for the ego to get shattered once he gets manhandled by a software technician that weighs like 10-15kg less than him. It's very interesting to see who adapts to that experience and who drops out.