Magnets

I took my Mum for an MRI scan today.
We got kind of lost, I must have missed turning while trying to distract/ keep her calm. So I set up Googlemaps on my phone, gave it to her to navigate. Sadly she A) had no glasses on and B) kept pressing things and jumping to their stages in the directions.
We had read all the instructions and duly got her to remove all jewellry, underwired bra etc.
Apparently just as they were putting her in she remembered her trousers had metal trim things so they ended up having to cut them off!