I don't know why you laughed.
Both issues are major potential flashpoints, the gas field is a serious issue, and while I also think Israel is too afraid to attack Irans nuclear facilities, a bad decision could easily be made. Both are situations that could lead to all out war.
Other situations can occur, like tit for tat attacks but may not lead to that point and I don't think Iran has an incentive to start a war, and would rather keep Israel under siege from all sides, and expand the strength of the siege. As far as I see it, Iran has no incentive to rush, while Israel is dealing with enemies that are only getting stronger over time, all the while Iran is also getting more technologically advanced and expanding its inventory and capabilities.