msplankton

hoping you will help me w/ dilemma i have. 1st, beautiful photos and info! mom of son's '01 outback wagon took to shop where they replaced head gasket + seals?, plus the timing belt and asst. for $1750. mom brought home saying "what is that smell?" 3 days later return to shop, where he says, "just excess oil, sprays with that stuff in the white can made by Lucas". 2 months later, that smell is still there, and look, there is different oil on my floor than original drips, to the best of memory. 3rd visit to mechanic yields arguing, crying, "lady~this oil is coming from transaxle gear and also power steering position". that is $1700. my pov and question is "did the mechanic loosen anything while doing original job, so that now there is new dripping oil? if so, what is my responsibility in this matter? i would hate to turn this into a battle.