I also get angry when odds change when I am betting. When they change, someone in my head always ask me if I am sure what I am doing? That is very annoying, when you make your own analysis, come to conclusion and make decision to place a bet, but instead of accepting the bet, system asks me to think about my bet once again. Why would I do that if I have done that already. If it would happen multiple times (like in example in first post) I think I would skip that bet. For me that situation look like I want to give money but instead I got questioned if I am sure multiple times? I am not a parrot. I think they would also get annoyed if I would ask multiple times if my bet lost if I have lost it.
It depends, in some cases I could completely understand them asking to review the bets, again is an example from horse racing, but still
a) I was going to put a bet on the underdog with about half of the race to go, I was thinking 4x is acceptable for the risks, 3 seconds late the favorite falls, and the underdog (3 horses in total in the race) is down to 1.20... no way I was going to make that bet, 8 fences left to jump and risk it for $2 for a $10 bet? Nope
b) Again, underdog leading and I was tempted to put money on it since the distance was pretty large and when I tried to place it, it changed from 5x to 50x because the exact moment the horse ran wide, in like 30 seconds, he went from first to last, that would have been throw-away money if I had left the option checked.
Everything has advantages and disadvantages, that's how things are.