ok first 10

cato

1 blow up his supplies

2 kill clove

3 get an 11 in training

4 light yourself on fire and name yourself katniss

5 tell him clove and marvel are dating

6 tell him you ship glato

7 drop tracker jacker nests on his head

8 tell him that he doesnt win the games

9 hide his sword

10 take his knife (like that kid did in the training centre in the movie lol)