GRACE CONQUERS ALL AT VIDEO GAMES. Perhaps she should have a true rival at some point? HMMM...
Mr. Verres is actually super good at hiding things. You just have to make sure you're asking him to hide the right things. If you want him to hide the presence of a considerable population of space aliens on Earth, he won't let you down.
If you want him to hide the details of a surprise birthday party or something. DON'T TELL HIM ANYTHING.