As far as I could recall, Machida and her group were untouchable. Or rather, one had to think twice before approaching them on their own. Because more often than not, they’d be made fun of by them. Likewise, it’s equally dreadful to be approached by them because they've more than likely selected you as their target of amusement.
It was probably what happened to me the last time I met them but Machida sent them away which was surprising, to say the least.
Sure, they had never put anyone in an extremely embarrassing situation but getting laughed at over nothing would never be pleasant. Who in their right mind would willingly volunteer as a laughingstock? Maybe those opportunists who wanted to get close to them. But even if there was one or two of them who fit the bill, no one had ever managed to enter their tightly-knit group.