remembering and forgetting

ran an errand for a friend...

friend:  'did you pay again?'

me:  'of course!  how do i get it if i don't pay?'

friend:  'so how much do i owe you now?'

me:  'ugh!  i told you to be the one to keep track!'

friend:  'you have to remind me to pay you...'

me:  'you know i don't like asking for payment!'

friend:  'but i'm forgetful...  i forget about these things...'

me:  'yeah, right!  the P10 (yup, ten pesos!  wahahahaha...) i owe you you deducted from your payment right away...  the ones i've been shelling out for you, since november yet, so many times already, you keep on forgetting to pay...'

selective memory...  : }