Question

A bi-weekly visit to your favorite restaurant. Say on average you spend $25 each visit.

Answer 1

A bi-weekly visit to your favorite restaurant. Say on average you spend $25 each visit.

You will spend an average of $50 a week at this restaurant.

Answer 2

Blow air at your gerbil. If your pet becomes aggressive (bites or scratches), blow a puff of air at its face. Your gerbil will find this unpleasant, and it should stop biting or scratching.[1]
This same technique works if your gerbil is just nibbling on you.