Useful expressions when sb makes a fool od you swindles you,/ cheats you/, dupes you,/ takes you in,/

lead* sy by the nose
he swallows everything you tell him (whole)
take* sg for granted = believe sy
do you take me for a fool?
I’m not going to buy it/that,
that won’t go down with me,
don’t give me that
don’t be naive
not have* a (guilty) conscience (about sg),
not be* filled with remorse (for sg),
not have*/feel* qualms (about sg)

All is not gold that glitters.