roof

"We had situations where he’d cling to lampposts, climb on the roof, and we’d have to restrain him several times a day."

Spray foam insulation has been used to stop heat escaping from roofs, lofts and attics for decades and comes in two forms.

When it was time for the raid, Mills, furnished with a walkie-talkie, mounted a nearby roof to keep an eye out as the others went through the tunnel and worked on breaking into the vault.

"There's such a range of stuff now that people can essentially do all of their shopping under one roof," she added.

In the background are exposed brick buildings with corrugated iron roofs, ploughed fields, mango trees and maize crops.