Well he's come close before, he would have beat Sin Eater to death if Daredevil didn't intervene. While I personally prefer that he doesn't (The resolution to the "Death of Gwen Stacy" comes to mind, he was ready to off Norman before he realized that it wouldn't bring her back, or make the pain go away) he's only human, and prone to mistakes. I wouldn't necessarily complain if one day Peter did let his emotions get the best of him, and then had to spend the rest of life reflecting on that mistake. (Toss it on the guilt pile with Uncle Ben and Gwenny!) but the story would have to be really well told.
Speaking of Venom, I could've swore they were teasing that the symbiote followed the Parkers home after Eddie's death. What with Pete's nightmares and Annie talking about "something under the bed." Not to mention the return to the Black costume at the end of issue 2.