| Categories | Frequencies (f) | Absolute frequencies (f%) | Absolute frequencies/ intensity level |
| DB level 1 (n = 110) | |||
| Distracted | 60 | 11.6% |
21.1% |
| Nattering | 15 | 2.9% | |
| Late | 13 | 2.4% | |
| No costume | 12 | 2.3% | |
| Leaving the room | 10 | 1.9% | |
| DB level 2 (n = 160) | |||
| Fooling around | 1 | 0.2% |
30.8% |
| Squabbling | 10 | 2% | |
| Bullying | 3 | 0.6% | |
| Making noise | 15 | 2.9% | |
| Deforming the activity | 40 | 7.7% | |
| Breaking the rules intentionally | 38 | 7.2% | |
| Giving up practice | 53 | 10.2% | |
| DB level 3 (n = 251) | |||
| Criticizing | 10 | 1.9% |
48.1% |
| Lashing out at material | 78 | 15% | |
| Mugging | 68 | 13.1% | |
| Dangerous behavior | 53 | 10.2% | |
| Being rude | 11 | 2.1% | |
| Ridiculing | 13 | 2.4% | |
| Resisting instructions | 18 | 3.4% | |