Very nice training and good on you to use your imagination to prepare for the unexpected. Too many dogs are just trained on a sleeve, and then put on the street. I've seen dogs come off a bite because of a rain coat. It's good to see how she overcame the strange feelings and committed to the bite.
Kudos for keeping your guy safe too. Those habits come from hard learned mistakes, at least that is how I seem to learn them.
Is this her first time biting through the tarp and not just playing around with it?
When a dog saves the life of a man, it becomes clear that partnership knows no bounds.
Fama - T.E.D.D. OEF XI-XII (GSD)(RIP)
Marshall - T.E.D.D. OEF XII-XIII (Lab)(SF EDD)
Lucian - Med Alert / Mobility SD (Cane Corso)
Pud - the old man (Pit x Lab)
Hank - DW Dog (Cane Corso)