When sign on cab says Call 911, I get nervous 2 March, 2013 · Updated 31 July, 2026 RelatedGonna guess this sign never changes. whitenoiseYou'd think they could build a better sign.Accuracy10 Usability0 (When nerds write floor signs.)Where were you when we needed you??? ←Ok, now Bitcoin is scaring meThe most disgusting thing I saw today... maybe this week→