Re: same ward.
Well, it's good to know we're successful at something.
You do have a good excuse if the Ministry asks you why you have such good wards on The Burrow.
Do you know how Muggles find oil in the ground? The blow up the ground and they listen for the kinds of sounds explosions make in oil. Seriously, the best thing to do is to just laugh about it. Be seen buying drinks for your brothers in a pub. Offer anyone who asks a copy of the article in The Prophet on Finding Fairy Nargles on a Pensioner's Wig.