Flinch

intr.v. flinched, flinch·ing, flinch·es
To start or wince involuntarily, as from surprise or pain.
To recoil, as from something unpleasant or difficult; shrink

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shhhhhhhhhhhhhh... let's keep it between ourselves =)

i apologise that i kept you awake by nudging you consistently. i'm sorry.

i'm thinking of reading up more on this as to why we as in humans actually do such things.