Boosting the lethality index

My most recent  economic development stipend  has been lying idle for weeks now, shirking its duty to circulate and stimulate.  I may fix that this afternoon, assuming the dole is enough to buy a "Marlin-Ballard  32 cal single shot rifle Pat 1861" in open auction. There is a problem. My buddy Bill probably wants it too, and we have an agreement not to bid against one another.  I don't think, though, that I ever promised not to put a reliable and quick-acting poison in his coffee.