The thing is, I could have sworn I already probed everyone!! Guess not D:
It is super easy to learn. I should have brought my kit to the show and taught you! its really hard to do wrong unless you apply too much pressure.
I can pop and that's usually how I check, I think I've popped all of my snakes at some point. For some reason pushing something out seemed safer than sticking something in so I learned popping first.
I hope that your spider is the only one who isn't what he/she was as.