Can your parents, feasibly, be physically hurt by a prank?
For Dress Shoes, go with a more expensive, higher quality pair because you could feasibly be wearing them for ages.
If you do not, you can feasibly end up spending more on fees and interest than you earned through the rewards program.
However they could vibrate at much lower harmonics, which could feasibly give rise to a low frequency hum.
According to a CNET article, the FBI could feasibly see where you are whether you're a suspect of wrongdoing or not.