The Deception of contractor lying and not taking responsibility nor being accountable for their actions and decisions.
Reality: A majority of home improvement company owners don't want to omit their faults , for example due to lack of skilled help, delays caused by not ordering special order items on time , delays due to lack of communication between this company and their sub-contractors. The excuses can go on and on.
Solution: Take the stance that 99% of excuses are avoidable. Delays occur due to lack of preparation, misunderstandings occur due to lack of documentation & lack of communication , poor workmanship is due to lack of experience, discipline and knowledge. Protect yourself against these occurrences by at least compensating yourself monetarily. Have a large final payment for leverage to correct unsatisfied workmanship and have a penalty clause of X amount of dollars per day if project isn't completed as promised.