Here is the back story: I work at a pet store, and recently a customer decided to force a BP to unball and by the time I took it from him the BP had decided that it was going to strike at everything. I left it alone for about a week or so before handling them again. It has now been about two weeks and he is still getting very stressed whenever the cages get pulled out(whether we are opening their cage or not).

What would you recommend besides just regular handling to get him out of this funk?