sex and chips

'I was having fish and chips last night and it occurred to me that sex and fish are very different'
'you can be very weird sometimes'
'I know. But think about it - if you like fish you can have it loads of times but then one time you'll have a bad bit of fish and then that's all you remember when you think of fish. However with sex it's the opposite - when you think about sex you aways only ever remember the best time you ever had it - even if it was 20 years ago!'
'actually that's true isn't it!'
'really wish I hadn't had those fish and chips. I can still taste them this morning!'