Tiger Argument: 

Not every reptile can swim. After all, tortoises are too heavy and are highly likely to drown. 

Disney Argument: 

Costco members are eligible for select rewards benefits. Those who have a Costco membership can download the Costco app to see their rewards. All other shoppers must spend at least $500 on their first store visit before they receive access to rewards in the Costco app. Amy has access to the Costco rewards app yet she has never paid the membership fee. Therefore, Amy must have spent the $500 minimum during her first store visit. 

Trash Bin: 

The stuffing from the pillows on the couch is strewn about the floor and the pillow has bite marks. Topanga the dog is laying on her back, belly up, and looking away the way she does after doing something she is not supposed to. My hypothesis is that Topanga is the guilty party, having intentionally ripped open the pillow to eat the fluff inside.