I hope we can one day agree on that they are useless outside of laboratory conditions . Using them is prone to errors because of subjectivity , light conditions and wetness . All you achieve with them is suggest a higher accuracy than you actually recorded , which is just as bad as no accuracy at all . <| sep |> Her loss ! Looks delicious ! I made a super delicious chocolate cake for my husbands birthday . Completely vegan . Everyone loved it but I didn ' t eat any right away so they all thought I made it with eggs etc . I was told over and over how great it was and how they were so glad I didn ' t make them eat that gross fake vegan food . I just took all the compliments . Then when they were finished served myself a great big piece . They all had to admit that they were fooled ! I have learned to just not tell anyone it is vegan until after they eat . People are so dumb about food . They have no problem eating a fast food meal but make something without any crap in it and they act like it ' s poison or will taste bad .