The `and` and `or` keywords are not equivalent to `&&` and `||` and its
use is counterintuitive. Here's an example
```
good = true && false # good if false
bad = true and false # bad is true
```
The reason is `and` and `or` are control flow operators. So the code:
```
bad = true and false
```
Is equivalent to:
```
if bad = true
false
end
```
