1.   I think the school has been too lax about bad behaviour in the past.

2.   In established States, less serious forms of bad behaviour are also permitted.

3.   It is generally not useful to speculate that such time-removed antecedents are associated with bad behaviour.

4.   It is unfair that the whole class should be penalized because of the bad behaviour of a few students.

5.   It is usually much easier to identify bad behaviour but the process of behaviour change has two sides.

6.   McEnroe often used his bad behaviour in difficult tennis matches to psych out his opponent.

7.   Much anxiety was expressed before the experiment lest televising would encourage showing off, bad behaviour or rowdiness.

8.   Our parents were strict and we were frequently scolded for our bad behaviour.

9.   Reintroducing those foods brings the bad behaviour back along with the wheezing or runny nose.

10.   Several studies have shown that aggressive toys lead to bad behaviour.