To see why, lets look at jolts, a data series from the Bureau of Labor Statistics which tracks job openings and turnover.
1590s, perhaps from Middle English jollen, chollen "to knock, to batter" (early 15c.), or an alteration of obsolete jot (v.) "to jostle" (1520s). Perhaps related to earlier jolt head "a big, stupid head" (1530s). Figurative sense of "to startle, surprise" is from 1872. Related: Jolted; jolting.
1590s, "a knock," from jolt (v.). Meaning "jarring shock" is from 1630s.
: We didn't want to jolt