The grey car was driving on the wrong side of the road because they were intoxicated and ended up hitting the orange car.
Not only is it dangerous to drink and drive because of the chance of hurting others, it also puts the person that is drinking and driving at risk.
It is against the law to drink and drive as well. In general it's a bad idea to drink and drive. It can get you into some major trouble and it can hurt others and yourself.
A much smarter idea would be to take public transportation such as a bus or taxi if you are intoxicated.
An easy way to not be tempted to drink and drive is to think about all the people that you could potentially hurt if you were to drive while you are drunk. Be safe while you drive and make sure you are not under the influence while you cruise the streets.