Originally Posted by Anthony King
All you need is one grassy decline and a bicycle.
1--Push rider down the decline, letting them balance on their own until they fall.
2--Repeat until they don't fall.
It seems this method might be better for children, who more or less have rubber bones, and who are used to falling all the time. Adults are likely to break before they bounce, and they tend to view an encounter with gravity as an indignity.