When I get JJ, or QQ, I usually run out of the room screaming.
When I get em, I first put on my AFDB, them some blinders (cause I really don't want to see what happens), then I throw a bunch of chips in the pot and stand back to watch the shit fly.
All kidding aside, the thing with JJ is that it is a hand that is very position dependent. In early position, with few reads, you would not want to get overly aggressive with them. See a flop? You betcha!. So a limp is reasonable. Late position, with little or no action ahead of you, a raise is reasonable. Likewise a fold if there was much action ahead of you. A reraise in the blinds is reasonable with JJ. Short handed it becomes a borderline monster.
The paired paint thing makes JJ dangerous, and one might do better playing them as if they were 77. Easier to laydown if one thinks that way.