I own several guns including an AR-15. Barret 416, rifles, hand guns, have a lot of experience with weapon safety issues and the very last thing I would do is allow or participate in amateur shooting since amateurs do the dummest things when they have a weapon in their hand.
About two years ago at a place in Las Vegas where people pay to shoot weapons a woman fires something like a fully-automic AR-15, spun in a circle while firing and killed an employee.
A .22 bullet gun is no safer than any other gun just because it is small because a .22 will travel 1-1/4 miles because it is so small.
Regardless of how careful I am when shooting with friends, I've had many near-disasters like when I asked my friend three times whether or not he removed the bullets from the AR-15 chamber and then after transporting the gun from Las Vegas I opened the case and found the gun was fully-loaded and ready to fire with only the accidental pull of the trigger. That was the last day I ever allowed someone to go with me when shooting.
About 40 years ago, I fired a .22 rifle at an object about 300 feet away and the bullet went into a 4 x 4 post behind the object I was shooting at, made a U-turn and broke a window in a vehicle that was behind me. Judging by measuring the hole in the window the bullet cleared my chest at the level of my heart by only 12 inches. That was the last time I fired a .22 rifle.
My point is; I am a very conscientious and safety-minded person, but guns and bullets are dangerous and accidents happen. So, why would you put yourself and others at any risk just for a little fun. There is a true story that bothers me many times every year and the story is about a man who was walking down stairs with a rifle swung over his shoulder. His two children were coming down the stairs behind him, his rifle fired a bullet, went through the heart of both his children and killed them.
As for taking your guests ATV riding, I can write horror stories all day long explaining why you don't want amateurs and idiots on ATV's. I've owned ATV's since about 1980 and still have 14 quad runners near Las Vegas. After several very unexplainable accidents that resulted in trips to hospital emergency rooms I finally learned my lesson and stopped inviting friends to ride with us in the desert.
We've had several unexplainable accidents where guests were riding quad runners at less than 20 mph and for no reason rolled the quads and broke their collar bones. About two years ago, my wife invited some friends from church to go riding with us. So, we gave the largest and slowest bike, a 4-wheel Honda 250 called Big Red made in about 1985, and the woman was riding very well for about two hours. So, just before we arrived at our home the woman was going about 15 to 20 mph on a super straight dirt road with zero bumps and I was behind her. For no reason the woman can explain she jumped off the quad when driving, broke a finger and we had to rush her to a hospital 45 miles away. NEVER AGAIN WILL A FRIEND OR GUEST RIDE ONE OF MY QUADS.
I've also had the very same type experiences with small water craft like the Sea Do or whatever you call them I had a Wave Runner and a Wave Raider. I let a brother-in-law ride one on the Colorado river where children were playing in the water. This fool driving the quad-runner was about 55-years old and I warned him about the children and dangers before he took off. When he came back to the shore he was coming in at about 50 mph and came so close to hitting the children he cause a father to want to beat him up and I had to get between them. NEVER AGAIN WILL I PUT MYSELF OR OTHER PEOPLE AT THAT SORT OF RISK JUST TO WATCH THE ENJOYMENT OF OTHERS!!!
