Holding cigarettes

I wonder why people hold joints different from cigarettes? Cigarettes are typically wedged between forefinger and middle finger, while it seems joints are mostly held securely between thumb and both other fingers. Is it because when people get stoned, they tend to drop it if they don't pay close attention?

Pardon my ignorance. I haven't smoked any cigarettes for many years, I quit when I was twelve.  And I've never been stoned. I tried pot in tea once, and it didn't seem to affect me at all. Maybe I didn't do it right, or the dose I got was calculated to a smaller person, I dunno.

OK... I like to say "I quit when I was twelve", it's funny. But of course I'd only been doing it for a couple of weeks, in secret, with a friend. But when I felt that it could become a serious habit, I got so scared I quit right away, this was mid-seventies, after horror stories of their health danger were common.

It used to be cool. James Bond famously apparently smoked 60 a day! Very macho! I wonder how can you do that in his job? Being a secret agent must take a lot of hiding and being inconspicuous, and spouting smoke and leaving butts 15 hours a day must get in the way, one would think. ...But of course, being fictional helps. It also helps with the being in such great shape despite smoking that much!