You can smoke with a screen if you want to.

While back I used screens a lot because the herb was ground so finely and it was kind of necessary. Haven't really thought about it since getting a vaporizer and learning to hand-roll joints. I guess you get accustomed to remembering the screen is in the ashed bowl and not just dumping everything out wildly on the ground in the dark. I usually smoke inside with bongs so toothpicks and screens are handy.