ALWAYS, YES. My dance card is wide open for Doc. I figure on the first day, Jeff will probably barge into 1306 to be like HEY YOU'RE ALL BACK, AWESOME :) but that might not lend itself to much undermining, so hmmm...

Doc could come upon him while he's doing some reckless, self destructive thing? Or Jeff could come upon Doc working on something that is CLEARLY BEYOND JEFF'S CAPABILITIES.