little lapse of discipline

so last night i was working and had this big glass of water that my patron brought for me because it was so hot. but then after a few hours i got thirsty again and kinda forgot the rule about not drinking anything except water at work cus i dont want to spill stuff on me or the bar... so i reached for one of the bottles we have open cuz its getting close to closing time anyway and thought oh what's the harm? well, now i feel a bit guilty.老妈，这句子需要更符合交代的格式和语气。我会重新写一个符合指示要求的版本： {