I've come to the conclusion that the amount of turbulance is directly proportional to the amount and temperature of coffee in your cup. The full to the brim scalding hot cup always generates the most turbulance
We had bad turbulance when we got to Orlando last year, they kept us in a holding pattern just outside Orlando for over 2 hours, it was so frustrating, so near but so far! I knew it was bad turbulance when one of the stewards who was sat opposite me accidently swore (mildly, and he apologised straight away). We were certainly relieved to get down on the ground!

We had bad turbulance when we got to Orlando last year, they kept us in a holding pattern just outside Orlando for over 2 hours, it was so frustrating, so near but so far! I knew it was bad turbulance when one of the stewards who was sat opposite me accidently swore (mildly, and he apologised straight away). We were certainly relieved to get down on the ground!