Arnold Schwarzenegger's Son, Joseph Baena, Doing Charity Work

His father is one of Hollywood's biggest stars, not to mention the former Governor of California. But for 16-year-old Joseph Baena - whom Arnold Schwarzenegger secretly fathered with his family's maid, Mildred Patricia 'Patty' Baena, during his 25-year marriage to Maria Shriver - he's hardly living a life of privilege and extravagance.

Indeed, the generous 16-year-old was spotted on Saturday spending his weekend giving back to those less fortunate as he volunteered at the Salvation Army in the notorious neighbourhood of Compton, California.

Interestingly, the teenager actually lives with his mother in Bakersfield, which is close to 130 miles away and a more than two-hour drive.

Clearly taking after his mom, Joseph proved that he knows his way around a number of household cleaning appliances, seen wheeling a carpet cleaner out to the street after getting to work inside the community centre.

He also helped out by trimming the overgrown trees surrounding the property - though rather than using a hedge trimmer or shears, he opted for a saw, which could have potentially caused a nasty accident. The teen is looking more and more like his famous father with every passing day.