First, you cut a hole in the ice. Then, you place bait around the hole. The bear will come to eat the bait. When he gets close, run up and kick it in the ice hole.
You can catch a tiger in a similar way...
Dig a hole. Put bait in the bottom of the hole and cover the hole with grass. The tiger will smell the bait and come to investigate. When he gets close enough, kick him in the grass hole.
maybe we could catch men that way, somewhat....