There are two trains of thought on the question of should you deploy on a Friday. One believes you should deploy on Friday’s because if you have a sound system in place, you can always roll back, the other thinks it is not worth the risk.
Both of these people are correct, and if you have a complete automated deployment process complete with rollbacks, and the rollbacks are continuously tested, then sure go for it. But in every other case, I don’t think the risk is worth it.
If it’s an emergency sure, but I’ve rarely found a deploy to be so important, it’s worth disappointing my wife and kids if it goes wrong. The risk/reward is just not close to being worth it for me. Work can wait.