the SUX Rule: Sandbox-free – Unsafe – eXogenous. If our code runs without a Sandbox and is written in an Unsafe language and processes eXogenous... (Josh's Notes)

the SUX Rule: Sandbox-free – Unsafe – eXogenous. If our code runs without a Sandbox and is written in an Unsafe language and processes eXogenous code, then that obviously sucks (i.e. SUX).

We don’t want our code to suck. Thus, we want to pick no more than two of these sucky things when we write code.