If A gives B the lie, and B retorts by a blow (being the two
greatest offences), no reconciliation _can_ take place till after
two discharges each, or a severe hit;—_after_ which, B may beg A’s
pardon humbly for the blow, and then A may explain simply for the
lie;—because a blow is _never_ allowable, and the offence of the lie
therefore merges in it. (See preceding rule.)
N.B. Challenges for undivulged causes may be reconciled on the
ground, after one shot. An explanation or the slightest hit should
be sufficient in such cases, because no personal offence transpired.