Smart Alec yes—so long as no one's hurt. It's easy to understand how teaching is considered beneath them as it's distraction. It seems to me that a possible (or partial) way of ameliorating the problem would be to teach students from the outset that the principal role of a university is educate and that if they which to do research under the auspices of a university then they must expect disruption as routine.

Whilst I understand that being disrupted is irritating, the fact that they consider teaching beneath them seems shortsighted. I am not a teacher but on ocassions I've had to teach and I quickly discovered that there's nothing to hone one's own knowledge more than to teach. When teaching in front of a class, 'knowledge' that one's thinks one's clear about in one's mind quickly distills into either actual knowledge or embarrassing garbage.

One wonders then why teaching isn't more highly valued with this lot (whenever I've had to teach I've considered it a privilege and it boosted my ego to boot—especially when in debate with intelligent students who ask interesting questions—some of which yours truly couldn't answer).