You'll see as a phrase felt promising, curious and absolutely bait worthy too. It's why Jim had no problem following him to see where they were going - both literally and physically.
Being backed against the wall had Jim raising an eyebrow and he didn't want to disturb this work in progress so the best he gave was an offer of, "Would you like my tie?" It was also a grand exercise of his self control not to just tackle Sherrinford to the ground and have his way.