Well, if Kabuto brings it up Jack at the least Jack could ask Calvin to lay off the watching and he'll just go up to him and ask;

"Oh, Scott, o buddy of mine. Could you do me a little favor? Just lay off of watching this one person. I think they had enough of it, sides it's creepy."

And hopefully, that would work and the watching would stop. Just get on Jack's good side. All I'm telling ya. :)

*hug back*