"The drinks at here may be fine," Javert says, not wanting to get the man to get bothered over nothing. It's in Javert's nature to be suspicious, wary of things that may not be what they say.

"I cannot say for certain. I only thought you ought to know, given your exuberance for drink. Does such a thing trouble you?" It doesn't trouble Javert quite as much as it did. He knows that he needs to make an effort to blend in, to participate in these festivals in a way that the townspeople find pleasing.