i know lots of people have experienced supervisor problems, but it the stress and tears worth it? i cant cope with the situation here anymore and have started to doubt whether a phd is worth this stress. i cant handle how my sup talks to me, appears to enjoy shouting at me in front of others (never when lab is empty does he say anything) when something doesnt work he says im careless and lazy (yet when others experiments dont work they laugh about silly mistakes, i just dread coming and cant see how anything is going to change anytime soon as have tried to sort the situation out in the past .i try my best but cant seem to get him to treat me as an equal with the other students/ post docs. any advice ?