Lesson learnt? Time will tell. You can never underestimate anyone ever.
I teach my guys to practice paying attention at all times regardless of the sob stories or the 'not really telling the complete truth about their experience' stories and not to forget the "oh my elbows jacked can we roll light?" kind of guy or gal either.
You have to stay calm and go get the tap without hurting them of course, but get it done nonetheless.
This is important in my book, plus, what great practice anyway. After all, they are the closest thing to the street right? So why not go after them in a respectful but strategic way, which always puts a smile on my teams face when a newby enters the 10th Planet domain. I thinks its a great way to take advantage of your skills, and practice never been spooked. Although it happens time to time, but if its instilled into your mind from the get go, its a healthy way to practice paying attention. Im not saying the guy wasn't paying attention, but if he is experienced and a 2nd dayer comes at him, I think it needs to make you 're adjust' your mental game, and not make that same mistake or limit it from happening again.
I might be going into it a little too much but it was an easy segway to start the conversation anyway.