had a bad day ?

went to job customer complianing of no heat or water,replaced pressure switch and boiler fired up great left.
week passes called back boiler packed in alltogether so check electrics nothing showing at fault so try replacement pcb no joy so going to suppliers for flame rectification lead on retuning customer say as soon as i left boiler fires up ok check everything is working leave call if any more probs.next day call back boilers gone off worked all night then gone off ok not my day
but go back to try again opens front door the heat could have ran a sauna told boiler has decided to fire up again so decide this has got to be sorted five hours later replaced diaphram micro switches ect and condesate trap which has decided to crack and leak even though not been touched which by the way on retuning to merchants he asks you still not doing that same boiler i reply yes dont think it likes me lol
return to house its ok 2min job to replace an hour later still not done begining to think boiler really dosent like me now boiler decides to run with explosive combustion thinking to myself i begining to belive boiler has a dislikeing for me get probs sorted once again leave for a couple hours return now there are either gremlins for real or boilers are like people who dont like dentists and dont like engineers or i am haveing a real bad week
p.s still think its going to pack in just to spite me