We've all heard the expression "two wrongs don't make a right." Nor do two people accused of driving drunk before a head-on collision cancel out each other's criminal charges. Instead, that scenario can make prosecution more complicated.
Most people who make the choice to drive after consuming alcohol or drugs are primarily concerned about getting where they need to go next. If they have any concerns about their level of intoxication, they usually have to do with being pulled over by a police officer and arrested for driving under the influence of intoxicants. It's less common for a driver who's been drinking to worry about causing harm to another driver or winding up in the hospital. But these are fairly regular consequences of drinking and driving as well.
Car accidents that result in injuries or death are undoubtedly stressful events. Immediately after the accident you may feel stress, shock, panic and confusion. If you know that you caused the accident, you may be tempted to avoid further trouble by leaving the accident scene immediately. But doing so won't make the fallout of the accident any easier and is likely to land you in more trouble.
People who are pulled over and arrested for drunk driving can consider themselves lucky, in one respect. If police determine they're intoxicated and stop them from driving before they get into an accident, it means the driver won't run the risk of injuring himself or others in a crash.