This is pretty cool. Here's one of the descriptions of sting pain:
1.2 Fire ant: Sharp, sudden, mildly alarming. Like walking across a shag carpet & reaching for the light switch.
Yes, but now stand still in the middle of a Texas backyard, wait five minutes, then look down at the dark swarm covering your feet and ankles. Just wait, wait ever so briefly, because the moment you finally notice is also the moment that captain fire ant gives the signal for all of them to bite simultaneously. That's a little more than "mildly alarming." I would also add that the ensuing response has little to do with "walking."