I know that if I put out a call I can have a police officer on the scene in minutes, but my protection comes from the Lord who has commissioned me for my ministry. As a Calvinist, I know that His will is going to be done, that I will not die one minute before my appointed time, nor live one second longer than He has ordained.
Honestly, I don't believe that I could perform this duty if I held to a non-Calvinist theology.
I chaplained for 20 years in the military and in 2 war zones. I've prayed over more than 200 dead bodies all told.
We Arminians do it because "we believe that what we do makes a difference."
Sincere question--do you really think that we don't believe He has appointed our time of death? We believe the same thing.