I actually find this a tad funny. I curse myself, I admit it, I would find it really odd if my husband tapped on someone's shoulder and asked them not to use language that wouldn't embarrass me considering on average I curse more than my husband

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I would have found it best to just be as non-descript as possible and IF I were to have stepped in to just politely ask to not curse. I know multiple guys who aren't really fond of cursing; none subscribe to the delicate ears are for women thing they just prefer not to hear it themselves