Why not deal with all those accidents waiting to happen? Scrub slippery surfaces with a deck brush and, if necessary, scatter with sand to give better traction. Fill children's sand boxes with bagged "play sand" and keep covered when not in use. Protect eye-poking canes with special rubber caps, or - a cheaper and equally effective alternative - hollowed-out corks. Repair broken panes in the greenhouse.
If your house has been rewired in the past 15 years it probably has an electronic circuit breaker or RCD. Have it checked by a qualified electrician. Get a separate plug-in RCD for the socket you use with power tools. Wear protective goggles when using a strimmer or hedge trimmer.
Wash garden produce well before you eat it, and always wash your hands with soap and hot water when you come in from the garden. And don't leave your tools lying around.