A hot potato - A hot potato can burn your fingers. Taking this into account, the meaning of this idiom is perfectly true that is, to deal with something which can prove to be harmful or even dangerous for you.
1. I might not be able to hold that sword, that hot potato.
2. Cycling is not my game; I can't manage that hot potato.
3. Please don't insist on me to play that hot potato game because if I lose, I will be insulted badly.