I work as a Locksmith. I have 5 years of experience doing Residential and focusing on Commercial work. The company I work for happens to prioritize emergency work (lockouts) over contract work so I do a fair share of lockouts. I open doors/locks very fast and sometimes a customer will comment "I should have just gotten those tools on (add website here)". I always tell them "Yeah, and you should keep those tools on you 24/7 like I do and while you are at it; should dedicate your life to helping others for a nominal fee". The cheapskates and lowbrows never find this funny. The reasonable people who I tell this to often leave a tip and sometimes a nice google review because they value the trouble I went through to help them at a reasonable price.