This is perfectly encapsulated by my favorite joke.

A physicist is showing their friend the computer scientist a thermos.

"This thing is so cool: you can pour something hot into it, and no matter how cold it is outside it stays hot". The friend is duly impressed.

"But that isn't all: you can pour something cold into it, and no matter how hot it is outside it stays cold"!

Now the computer scientist is puzzled. "But how does it know?"

Code like this is the bane of my existance.