Notes:

I think this was from either the episode where Tails gets fused with a Beebot or the one where Eggman goes back to school to earn an actual PHD. Actually now that I read out loud the Sonic Boom episodes summaries I'm quickly realizing how weird they are… it's great. That aside, some of the writers themselves wrote the Sonic Boom comic which ended just like this, shame too since it was harmless fun.

Edit: It's from S2 E48, "Don' make me angry". Thanks for the info MochiTachi70