Was it really so that according to the TOS of Mt.Gox, the instant I deposit my BTC to them, it becomes their "assets" that they "owe" me, instead of "customer funds" that they must "safeguard" for me?

If this question is resolved in the only sane manner that it can be ("customer funds" unless EXPLICITLY otherwise stated), it also becomes clear why the contents of the safety deposit boxes are not auctioned when a bank becomes bankrupt, and your car is not sold if you were having it painted when the painting shop goes broke. Instead, you property is returned.

Anyone?