About the worst character of skier or snowboarder that I can think of are those who pay little or no attention to those who happen to be around them. I am not going to lie to you, winter sports such as these can be dangerous. But with a little care and concern, everyone can have fun in the snow safely. Just as if you were driving a car, make sure to keep checking in front and behind yourself. Snow boarders and skiers have different patterns of riding and that could lead to some difficulties on the slopes as paths and runs tend to overlap.
If you happen to get injured on the slopes of Big Bear, have no fear, a team of rescuers is on hand to help you out. It is good to note that this team of rescuers is there to help you out only "if" you stay on the runs of the resort. If you freestyle off the runs then there is a good chance that you will have to wait a while before somebody helps you out. Local news stations are always covering that story of somebody who skied off the course and had to survive in the wilderness for a day or two. My advice is to stay on the runs until you learn enough of the mountain to offshoot. And if you are on the main courses and see somebody injured, it is best to steer away from them so you do not hit them and make things worse. Paramedics are skiing down the slopes every minute so it is best to let them handle the situation as they have medical training for the situation. At the base of the mountain on a large sign where you purchase your lift tickets, you will be able to read the liabilities and emergency care that is entitled to you for skiing on these commercial slopes.
If you decide to go skiing/snowboarding safety should be your primary concern. These winter sports no matter how fun can be dangerous if one does not abide by safety rules posted on the mountain. Before you ski or snowboard down the mountain, make sure that you check for loose clothing or equipment as this could affect your ride.
Rattlesnakes are out in abundance from Spring until late Fall when the snow season begins. These little suckers camofauge themselves quite well into the rocks and leaves. Just keep an eye out to as where you step while out hiking and listen up for the distinctive rattle (sounds like a sick bird). They want to meet you about as much as you want to meet them, so stop and back away slowly and they'll do the same for you.