But I say harassment with the accent on the first syllable (har-uhs-muhnt), and advertisement (ad-vur-tis-muhnt) with the accent on the second syllable. And again typically with a long vowel in the second syllable (uh-geyn).
It varies for me but mostly the et sound... sometime the -uht sound and maybe I could swing the -it. But since I have a deep southern drawl I tend to say it the lazy way and it comes out templet. I don't have time to hang on to the long a sound ya'll. hahaha