A helicopter in NWFL/SAL....... you're lucky it wasn't one of the orange and white ones with the cloud seeding tanks on it.
ETA: Phone didn't show the vid..... Rotor wash is definitely a thing. I've been in aircraft responsible for knocking over porta potties, work benches etc. Buddy thought he killed a K9 when he saw the kennel blow across the LZ but thankfully the K9 was out taking a leak before the ride. Crewmen wear eye pro and the mandible protector as a standard procedure. Bugs/debris at 25kts and higher from fwd speed or rotor wash is not fun. https://shop.gentexcorp.com/gentex-hgu-56-p-84-p-maxillofacial-shield/