premise: Anytime i have had fees in the past ... as soon as i went in to check out more books ... i paid them as soon as i found out . They did n't send me any notice in the mail or anything ... no phone call either . So , i was shocked when i read the email . But anyway , when i got ready to pay her ... she seemed embarassed and said ... actually the fee was like 13.00 because more fees accrued since the notice was sent . Why did I pay the fees as soon as I found out ?
hypothesis: Because they did n't send me any notice .