Welcome to the forum Alain.
My "wake-up call" was the JW dogma that Romans 6:7 refers to a person's physical death:
Watchtower May 15th 1982, pp. 8,9 - "The Bible explains that at death a person is set free or released from any sins he committed."
Bible Teach p. 214 par. 3 - "..the judgment will not focus on what people did before they died......Those resurrected thus come to life with a clean slate, so to speak."
The surrounding verses - 2, 4, 6, 8, 10, & 11 overwhelmingly prove that Paul was describing how a sinner is figuratively dying - to their former way of life.
Unwittingly, JW's are repudiating Matthew 26:28: "...for this means my ‘blood of the covenant,’ which is to be poured out in behalf of many for forgiveness of sins."
They believe that ceasing to breathe wipes out a person's sins - no need for Christ.