Four-year-old Omar Harooni doesn't let weekly trips to the hospital stop him. 

The California boy was diagnosed with a rare blood disorder called beta thalassemia when he was just 6 months old, according to KOVR. The disorder leads to low levels of oxygen in the body, thanks to a reduced amount of hemoglobin. 

To take his mind off things, Omar recently became a sheriff's deputy for a day with the help of the Make-A-Wish Foundation. 

He donned a custom uniform and got his very own set of wheels. 

"It's a good feeling," said Deputy Christopher Guerra with the Sacramento County Sheriff's Department. "I know that he's happy inside even though he's a shy kid.

"I was a shy kid too, so I know how it is," he added.

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