In your case, I suppose you can do better than that - if you don't want the Dock to accidentally appear (just as I don't, since I hardly ever need it), there is a command to set a longer delay. This way, the Dock will only appear if the cursor stays in the Dock area for a set period of time.
I have this set to 5 seconds. It's great for me, because I know I can make the Dock appear, either by waiting 5 seconds, or pressing the shortcut. Maybe this will work for you; and of course it does not have to be 5 seconds, it could 2, or whatever you prefer.
defaults write com.apple.dock "autohide-delay" -float "5" && killall Dock
Of course, use a different number if you like; also, you can undo any changes by calling the command again with the default value, 0.5, or by deleting the preference with
defaults delete com.apple.dock "autohide-delay" && killall Dock