This was a truly entertaining episode. I laughed my head off watching Trask make Evan squirm. Evan tried in vain to convince Trask it was only a 'harmless interlectural experiment' he and Quentin were performing, but Trask wasn't buying it. Trask is many things, but stupid he's not.
And Trask's remark:"You called the devil and you got me." I've yet to see the difference between the two.
So much for the 'blissful' marriage of Gregory and Minerva Trask. As one can see, even though they can be utter bullies to other people, they aren't really a match made in heaven as they may have others believe. I doubt this is the first time they've gotten into it either over another woman. Gregory did imply that Minerva has made other such accusations about him and another woman in the past.
I think Quentin enjoyed planting the doubt about Minerva about her husband and Judith, not just to get Trask off his back but also because he does seem to enjoy causing trouble in meddling in other people's affairs.