Notice how Guy "Synthol and Gay Sex Slut" Grundy has stayed out of this thread. He knows he would get his ass kicked by Jack. Period.
Actually what I notice is that Jack can joke and laugh about this and to be honest I don't think he was calling Guy out physically. I don't believe he wanted it to go that route, but, things got twisted and out of hand to the point where neither he nor Jack looked good.
It is nice to see Jack has a sense of humour and isn't taking the bait for that fight seriously. If he truly is a businessman, he has better things to worry about. By doing this he is also helping out the image of bbing more than any fight thread.