1. Unless the guy was performing an abortion with a shotgun...

Разве что, парень произвел аборт при помощи дробовика.

2. An abacus (plurals abacuses or abaci), also called a counting frame, is a calculating tool for performing arithmetical processes, often constructed as a wooden frame with beads sliding on wires. The user, called an abacist, slides counters by hand on rods or in grooves.

Абак Абак (математика) — счётная доска , применявшаяся для арифметических вычислений .