. >> young boys are aren't easily appalled but 11 year old preson sharp sure knows the feeling. >> i was really surprised. >> and disappointed. >> really disappointed, yeah. >> had you seen them like that before? >> not this angry, and passionate. >> reporter: preson's mom april says what upset her son so was visiting his grandpa's grave in redding, california, and realizing not every veteran in the cemetery had a flag. april says even hours later he was still harping on it. >> i was like fine, if you are going to complab and he was like well i'm going to do something about it, mom. >> next thing she knew he was taking odd sop jobs and solicitying donations to buy flags and flowers for every veteran in his grandpa's cemetery. when that cemetery was covered, he moved on to another, and then another. and here we are two years and 23,000 graves later. and he does this every week, rain or shine. especially rain. >> why? >> like they were out there in the rain doing their job protecting us. >> reporter: preson says coming out here in the rain or in this case 100 degree heat, is the least