I do this all the time, it's really annoying. When I scroll I tend to rest my thumb in a spot as I read then slowly slide it down. I constantly highlight text accidentally. I know they didn't have copy paste for a long time (a feature thats been on the most basic cell phones for over a decade now) and people complained forever. But when they finally did it, they made it ridiculously intrusive. The implementation itself is not bad, but I don't use it nearly as often as I mistakenly activate it. Agghhh!!!