For the most part, parents understand that they're asking a huge favor when they get someone to babysit for them.
Considering that it's normally a service people will pay for, the fact that a friend or family member is willing to do it for free should always be appreciated.
Still, some parents can nonetheless find themselves taking their support network for granted. After all, whether babysitting is a breeze or a huge undertaking depends on how well-behaved the kid is and when you spend pretty much every day with a child, it's easy to get used to their behavior.
And it's hard to imagine any other reason why one man wasn't immediately mortified after his neighbor confronted him about what his child did while she was watching her.