FWIW I wouldn't be OK with them breaking the rules, but I'd appreciate the character trait that leads to someone who when challenged will look for a workaround.

In this situation the rule had been fulfilled, the meal was finished, and so finding a way to get back online was perfectly "lawful".

I'm pretty legalistic in a rational way with domestic rules for my kids - they can't flout the rules but they can provide a logical challenge and change the rules.

This situation was poor time management on my child's behalf.