I fly quite a bit and have had some rough stuff around Asia but nothing that was scary - uncomfortable, occasionally dramatic (flying in to HK just after a typhoon had passed by) - but I guess compared to what pilots are used to fairly minor stuff.
Once however a good few years back I was flying with some mates back from a holiday in USA. Out of Boston with Virgin on a 747. After a while it got a bit choppy - my mates who didn't fly very often looked a bit alarmed so I said 'Oh it's nothing - chill out - quite normal'. They relaxed... a little later it really was all over the place (or so it felt down the back). Cabin crew were strapped in, some screams and stuff flying about.
One mate turned to me 'So LT is this still normal?'
'No - I'm ****ing ***ting it now!' says I my knuckles white grabbing the armrests...
Their faces were a picture. Cheered me up no end.