I recently moved, and the moving company refused to take things like cleaning chemicals, petroleum products, and compressed gases like propane tanks.  I get it:  it's dangerous and moving companies can't handle the liability or whatever.  But I ended up just transporting it in my car, so the risk was absolutely still there, but it was all on me.  The moving company didn't mitigate the risk in any way, they just transferred it to me.  And yes I realize I could've just snuck some of that stuff into boxes (and I did) since I was paying multiple thousands of dollars for this service, but it's the principle.