When triggered, my activities STOP.
A triggering event or memory may completely overwhelm my self-control. In that case, a situation I call an "episode," I'm just swept away and can't deal with anything.
If I have any self-control, I treat it as if my mind were declaring an emergency. My mind will take care of it, but my mind cannot be divided and has almost no spare resources to devote to anything else. In that case I may
- physically freeze in place and withdraw into myself
- lie down (or collapse) wherever I am, and that usually means the floor
- swiftly get to a "safe" location, such as an uncrowded area or - better - a room or area with no one around
- put in earplugs and close my eyes
Later, once the worst part of the crisis has passed, I may lie down on a bed or recline in a chair, and possibly eat or drink something. Sometimes dealing with a trigger may consume only a few minutes, other times hours. It can totally ruin my schedule for that day.
((((((( Fuzzybear! )))))))
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My dog

mastered the "fetch" command. He would communicate he wanted something, and I would fetch it.