I couriered a cake within the UK for my aunts 75th birthday. I advised the company when booking that it was a cake (single tier fruit) and, on their advice, I did not secure the package until the driver picked it up and gave me a signed note to say he was happy with the packaging (lots of bubble wrap etc), warnings (right side up/fragile stickers). It was an overnight delivery. Sadly in did not arrive looking as it did when it left me. I personally would never do this again as my aunt was quite distraught about the appearance of the cake, although it was still edible and very much enjoyed by the family.