This is somewhat of a nit-pic, but that's a very incorrect way to use the idiom "drank the kool-aid". You're using it here as a substitute for "I believed what

This is somewhat of a nit-pic, but that's a very incorrect way to use the idiom "drank the kool-aid". You're using it here as a substitute for "I believed what he said", when in fact "Drank the kool-aid" means you are admitting you were brainwashed into believing a doomed idea to the point you're practically willing to die for it. The followers of Elizabeth Holmes or Adam Neumann can be said to have "drank the kool-aid". If you're not aware, it's a direct reference to the Jonestown mass suicide, so to me it comes off pretty jarring to see it used to refer to something as noncommittal and inconsequential as "I didn't disbelieve his statement".