How did these customers even know that you had your own lawn company? When we work for our main sub-contractor we wear his companies uniforms and use his companies signs on our truck. Very few of his customers ever suspect we are more than an employee and we would ABSOLUTELY never take a customer from him. It is not good business at all to take from someone that has been so giving.
If you didn't appreciate the little drama fest your stolen customer put you through you wouldn't have told them you would do their lawn.....remember what comes around goes around