Yup. Pinky finger at the very end and perpendicular facet of the cylinder. Or, I just grab the top of the door closer; it's a little dusty. Or if the door droops, the top edge has a sharp lip that drops downward. Even a short nail can pull the door. And finally....

These gents go home to their wife and kids...nah. Don't touch surfaces...and teach your kids.

(Yesterday, someone spilled sugar candy on the stairs of a friend's building. Elevator is out, so everyone uses the stairs. Some visiting kids saw me [cleaning] it, and I spent ten minutes explaining why someone did it, did not clean it, and why I did. Fuck, if kids don't ask millions of questions. Pass on good habits.)