Storehouse

The Storehouse is a random encounter in the Forest where the hero comes upon a room full to the brim with food. You have the options to either enter through the unlocked window, or break open the door to get inside. If you're too fat, you won't be able to enter through the window, but you will always be able to get in through the door. (I recommend trying to enter through the window at different weights to see the various flavor text).

Upon entering the Storehouse, there is an abundance of food for you to eat. What you choose doesn't matter except for role playing purposes. However, depending on how you entered the Storehouse, the situation changes slightly.

If you entered through the window, you will have varying degrees of escaping along the same route based on how much weight you were able to gain while inside the Storehouse. Entering the window is possible at something like less than 2,000 pounds, and the cutoff for getting stuck is somewhere between 7,000 and 10,000 pounds (7,000 was not enough to get completely stuck and 10,000 was). The flavor text is great either way, but it's most entertaining when you can't escape, as you will encounter the Angry Local, who will attack you. It is impossible to run from this battle, as your trapped inside and very very fat at this point.

To summarize, getting stuck the window route depends on your stomach capacity being high enough to bloat you up by (tentatively) 8,000 pounds.

To enter through the door, you need to be strong enough to break it down, but if you enter by the door, you don't need to worry about stomach capacity at all. In fact, you don't even need to eat anything to get stuck inside. No matter how much you weigh, you can enter through the door, but it has a cutoff weight for leaving. Tested at 10,000 pounds, it was enough to get permanently stuck. The exact cutoff is somewhere between 10,000 and 7,000. Just like the window, you will encounter the Angry Local, who you can't run away from.

To summarize, getting trapped the door route depends on your weight.

It's worth it to explore the various flavor text for this encounter, especially if this is your kind of thing.