What do you think this place is, Ma Er?
Baoyuan Inn, this sort of "grey area," being able to stand its ground in the Capital, must possess a strength that's apparent, as well as forces behind the scenes...
The waiters running around the place wouldn't dare mess with you, but the innkeeper observing from a certain room upstairs is no ordinary person. If you really push him to make a move, it won't be your setting fire to his establishment, but him burning incense for you on this day next year.
Moreover, let's take a step back here, actually, there's no need for the innkeeper to intervene. Right now, among the guests in the hall, there are quite a few masters from the jianghu and green forests. They probably have some business to conduct here, or perhaps they've arranged to meet with someone... You cursing at Huang Donglai is one thing, but if you set the place ablaze, they certainly won't sit idly by.
But Ma Er, of course, would never think of these things.