Finishing other people’s sentences, cracking your knuckles and biting your toenails all feature in a chart of Brits’ worst habits.
More than 90 per cent admit to having at least one bad habit, with one in ten admitting to ten or more weaknesses.
Swearing was the most common trait, followed by nose-picking, not listening when others are speaking and biting your nails.
Over-using social media, hoarding and not washing your hands after going to the toilet also feature in the top 50.
But the study of 2,000 UK adults, by ColdZyme Mouth Spray, revealed that one in 10 has suffered a cold or stomach bug due to a bad habit.
A fifth of people surveyed admitted they had actually fallen out with a friend or loved one over a vice.
A spokesperson for ColdZyme Mouth Spray said: “Almost everyone will have at least one bad habit at some point whether it’s checking in on social media a little too often or indulging in a type of food you shouldn’t.
“But while many bad habits will be virtually harmless, some can be pretty annoying to other people, while others can have a serious effect on your health.
“Something as seemingly insignificant as not washing your hands or biting your nails often can lead to a cold or bug, or even pass your germs on to an unsuspecting stranger or loved one.”
Top 50 bad habits
2. Picking your nose
3. Not listening
4. Biting your nails
5. Eating chocolate
8. Not brushing your teeth twice a day
9. Drinking alcohol
12. Picking scabs
13. Losing your temper
14. Farting in front of others
15. Using social media
16. Eating fast food
18. Checking your phone while other people are talking to you
21. Picking spots
22. Drinking too much caffeine
23. Interrupting others
24. Eating junk food
25. Skipping meals
26. Not washing your hands after going to the toilet
27. Drinking fizzy drinks
28. Having sugar in your tea or coffee
29. Finishing other people’s sentences
30. Cracking your knuckles
31. Watching reality TV
32. Chewing your lips/inside of your cheeks
34. Using slang
35. Playing Candy Crush
37. Grinding your teeth
39. Playing video games
40. Not covering your mouth/nose when you cough or sneeze
41. Chewing gum
43. Speaking with your mouth full
44. Biting your pen/pencil
45. Tapping your fingers/pen on the table
46. Excessively or loudly clearing your throat
47. Smoking e-cigarettes/vaping
49. Biting your toe nails
50. Sucking your thumb