"...An accidental explosion would be only the latest in a string of deadly mishaps for militant groups in Gaza.
A Hamas weapons warehouse exploded this month in Gaza City (search), killing six people. Hamas claimed it was an Israeli attack, but Palestinian security forces found the blast was an accident caused by the militants.
During an Islamic Jihad rally at the abandoned Jewish settlement of Netzarim (search) last week, a gunman died after accidentally shooting himself in the head.
Even after the blast Friday, seven or eight gunmen stood in the back of another truck riding through Gaza, using their feet to stop a half-dozen rockets from bouncing around in the bed."
Serves them right.