I'm not a mower pusher ha ha. We do installations ONLY, Pretty much anything outside we do. We run 3 pieces of equipment, have 3 trailers, wood working tools, gas powered tools, many of which could explode at any minute!! You name it, we got it. Have you ever been hauling a trailer and a brake drum jams up? Id rather have a fire extinguisher than my little cup-o-coffee ha ha. So yes, a landscaper does need 2 fire extinguishers... Ive only had to use one once.... But is like a condom, its better to have it and not need it, then to need it and not have it ha ha.