User blog comment:That Engineer/Welp, just saw the new episode today/@comment-32055298-20170613220408/@comment-26901681-20170623160653

I don't think Lynn Sr. and Luan knew that Lana would be the one to fall into that trap. In fact, I don't think they knew who would have activated any of them. It just so happened that Lana fell into the trap of pies filled rhubarb. Perhaps I'm over analyzing it and everything that did happen went completely to plan with who got what prank.