I got all 4 out, partially because my dad had 1 taken out at a time in the navy and he didn't want that to happen to me.
Ah, no wonder you suffered so much then.
I still feel that doing 2 at a time is the best compromise between discomfort and efficiency. 1 at a time would make way too many visits.
I do admit to being somewhat of a wimp, though. I don't like pain.
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