Good point, In business and life we all make mistakes. Hell Chit happens.. Maybe it was an honest mistake or oversight. Granted one that sux, but it may have been unintentional. Althought a simple double checking and a few more minutes of time could have eliminated that.
Anyhoo, if it is just the pan and tin, not major engine damage it may not be that bad. Maybe the packer or carrier will meet him somewhere in the middle on it?. Some tin may be better that the bad PR.. Also maybe they could be reimbursed for some of it or all of it by the shipping insurance? Hell, I will even venture out on a limb here to throw in a question of "is it possible that the other bolts were in, but not all the way or tight and fell out during transport?".. I dont know, but I dont know the builder or the shipper. I just hope it all works out for eveyone and I dont want to badmouth anyone too much without knowing all of the facts on both sides. Again it is a sucky situation, but hopefully it will all end well for both sides there..

J