One parenting lesson Elton John and David Furnish already know: boys will be boys.
“Zachary broke his clavicle two days ago on the playground jumping off the climbing tower,” Furnish told PEOPLE of the couple’s 4-year-old son during the Elton John AIDS Foundation Oscar Party Preview Day on Thursday.
“Which we told him not to do and told him not to do and told him not to do — and all his friends were doing it and he couldn’t understand why we didn’t want him to.”
He continues, “You turn your back for half-a-second and he jumps off the climbing tower. He’s fine. It’s part of little boys, and growing and bumps and bruises and fortunately, not major broken bones.”
Their tough little man will still join his 2-year-old brother Elijah at their parents’ annual Academy Awards viewing party on Sunday, where Furnish, 52, and John, 67, are hosting a “’70s disco glamour” fête for 1,000 people.