I work in a noisy shop all day, so it or me to is easy for me to block out background noisy, either baby crying or sweetie yappin'. Sweetie on the other hand gets visibly frustrated and brain starts misfiring with baby crying. I don't think her reaction is specific to baby crying, just when it is most noticeable.
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"Guage once told me that there is nothing worse than eaten ass of a black dude thats been huffen drain cleaner the night befor." - delanoojos