Criticsim to a sensitive employee
One problem I have encountered is the use of the word "criticism". I have had managers and HR Specialists actually write in counseling documents. Employees see that word and automatically are put in a defensive position. Once in that mind set they are not hearing you. Criticism, as a word, implies a negative assessment even it it positive and is never taken as "constructive" as no one likes to be criticized so it is an oxymoron. I avoid its use and substitute word "feedback". Employees seem to be more receptive to feedback and "hear" what deficiencies are being pointed out so they can correct them.