Been there, done that. Put the first quart in, bent down to pick up the second quart from the floor and saw the first quart running out on the floor. Also, forgot to put the oil fill cap back on one time. Drove it on a 400 mile round trip, then noticed oil on the garage floor the day after I returned. Raised the hood and the whole engine compartment was glistening. Checked the dip stick and it was barely touching the bottom of it. Fortunately, no harm done. This has been cathartic hearing there are others of you that have pulled these types of stunts.