There's more to Ruby's `ensure` keyword than just exception handling.
Tag: gotchas

Episode #295: Predicate Return Value Part 2
In the second of two episodes about predicate return values, we look at some of the subtle ways that non-boolean predicate return values can catch programmers by surprise.

Episode #294: Predicate Return Value Part 1
Predicates return booleans, right? Not always, as it turns out. Part 1 of 2.

Episode #045: Hash Default Value
This cautionary episode demonstrates and explains a Hash gotcha that often comes as a surprise.