Chrysler Repair: oil dripping from tailpipe, dodge caravan, head gasket

Question
QUESTION: I have a 1998 Dodge Caravan.  Two weeks ago I had major repairs done replacing the head gasket.  This weekend I noticed the back of the van was covered with slick oil and the tailpipe was dripping oil.  I checked the oil and was three qts low.  There is no visable smoke when the van is running.  Did my mechanic miss something while doing the repair work?

ANSWER: yep take it back

---------- FOLLOW-UP ----------

QUESTION: Dropped the Van off tonight at my mechanics. What are some of the things he may have forgotten?  Don't want to get stuck paying for more repairs when they didn't do the job right in the first place.

Answer
then thats your stand the only way oil would come out of the tail pipe is from the CYL head  and well u just had that area worked on. I would not pay for a dime more then what was done.They probably put the gasket on wrong or a crap ass gasket instead of a factory one.