No, there are much worse things.
His smoking.
he bounces his legs. this is what he says "I bounce my knees, but i do not have restless leg syndrome...i have many friends who bounce their knees."
His worst habit is farting.
To form a sentence about a habit, you can simply describe the action or behavior that is regularly repeated. For example, "She always drinks a cup of tea before bed" or "He goes for a run every morning."
smoking
No
"My worst habit is getting naked all the time".
David Streek has written: 'Kick your smoking habit' -- subject(s): Health aspects, Health aspects of Smoking, Smoking, Tobacco habit, Treatment
Smoking
A good habit of eating a healthy breakfast can benefit you, whereas, a smoking habit will not benefit you at all.
My SMOKING Habit
geting naked