Maybe because it's dangerous to use the pit trap as an entrance/exit, sounds like he could get smashed into the spikes if a boar jumped in when he's getting out? Either that or the fact that the pit closes whenever the dungeon resets.
@jimmyclear
That's more accurate than you realize. Boars are incredibly mean and powerful. And wolves will NOT attack one without a pack to back it up. 1v1, I would nearly always bet on the boar.
Also there are legitimately boars that get up to like, 150kg in the UK... and over 450kg in the USA. There's a reason they used to only hunt them using long spears and shields while getting mad pussy for it.