Use of contact and come into contact

Question

Which is grammatically correct: Smoke contacts walls or smoke comes into contact with walls?

Answer 1

The correct way to say it is "smoke comes into contact with walls" because the verb "to contact" refers to communication rather than things physically touching.

Answer 2

"Smoke comes into contact with walls" is grammatically correct because walls are solid objects and smoke is a free-flowing substance. The walls therefore stay still whereas the smoke moves around from one object/area to another--coming into contact with them all the while accordingly.