Here is my case. Dec 1998… DWI (dam)…. June 1999, fishing in Sioux Narrows… no problems. 2001, fishing in Ontario, no problems. 2002, June fishing in N Manitoba, no problems. 2004 June, same, no problem. 2006 June, same, no issues. 2009 spring, Bear hunt (brought guns in) and fishing, no problems. Fall 2009, same (more guns), no problems. 2011, spring bear hunt, N Manitoba again, no problems. Either I am the luckiest guy in the world, or there is no hard scientific answer. I couldn’t have been ducking it that many times… BTW, I have always heard after 10 years, you are considered reformed.