I would rent it out when I'm not using it.
What is high risk about take-off?
It is (hard) landings that are high risk.
Well there is some extremely serious force coming out of those jets, if you happen to slip over or lose balance during take off or landing you could be pretty easily propelled into a wall or other obstacle, or just dragged along the ground. It would hurt, and you could die if you got unlucky. Also the water from the jets bouncing off the ground could easily take out your legs, facilitating the slipping/loss of balance.
What is high risk about take-off?
It is (hard) landings that are high risk.