Hilarious Assassin's Creed IV Bug

This is a particularly crazy bug:

(The video is not mine; I found it on YouTube.)

Anecdotally, I've noticed that horrible bugs seem to be more commonplace with videogames (especially AAA titles) than in decades past. I would hazard a guess that the reason for such an upturn in breaking bugs is a combination of high pressure development schedules and the need to create ever bigger, more expansive worlds.