Go into a garden and dig up a flower. The next person who comes by won't know what flower is missing, but they will still know that something is gone

I forgor 💀

Pointer to a pointer exists but the pointer it points to no longer points to anything because the thing it pointed to was moved. You still have the pointer to the pointer but you get null from it instead of a memory.

Bold of you to assume you knew in the first place

Every gotten a stale pointer error while programming?

A brain cell went to get milk