Use "knavish" in a sentence

1. But it is too late now to expose such a knavish trick on the Saturday before election

2. At any rate even the knavish moon god had standards pertaining to who should or shouldn’t be awarded this coveted nectar

3. "As though no one could be a scoundrel among us," Liputin grinned suddenly, his knavish little eyes seeming to peer into Stepan Trofimovitch's soul