he who sups with the devil should have a long spoon
scabby sheep
something else
there's a rotten apple in every barrel
worsener
bad lot
seducer
malevolent
superbad
unrespectable
Jekyll and Hyde
as much sinning as sinned against
the darkest hour is just before the dawn
no-good ass
kick a dog when it's down
kick someone when they are down
scapegoatism
treat like dirt
point fingers
Sauron
sinner
badun
lafanga
reap the whirlwind
devil in disguise
over a barrel
misadvise
Voldemort
be thankful for small mercies
evilist
piece of garbage
shitdom
piece of trash
piece of junk
woe betide
injured party
worst comes to worst
pode
quisquous
ill-usage
catastrophize
disapprove
badnik
blame
mistruster
unhappily
villain
compassion
hit one hard
look for a dog to kick