I can see where he was coming from, since it's often typical of us to bring supplies for ourselves, so he must've misinterpreted you to being planning on using the truth ones on us. But that's still a bit of a leap to make... It's clear he was already wary and feeling hostile.
I don't think there's much you could've done to prevent him from assuming as much.
no subject
I don't think there's much you could've done to prevent him from assuming as much.