I always Hoe on the first merge, people will insult me for it but i rather Hoe than avoid it allowing you on my six. I consider it a great act of bravery and courage along with making it a bit personal (which always causes him to up again). Its YOUR fault if you decide to head on a 110.
As for colliding i do it all the time when outta ammo/fuel, your not gonna make it might as well take one with you....