Had an interesting situation. I was in melee with a vehicle, I charged it on my turn and brought it down to 2 wounds. On my opponents turn he of course attacked with it, but I did not want to attack it in his turn because it might explode. The rules only seem to say that a unit within 1" of the enemy may be chosen to fight not that it must. I wanted to be able to shoot it to death with my troops out of harms way.
What are peoples thoughts? Is this cheezy, and is my interpretation wrong?