Just viewed an apartment.
Me: “How long has it been on the market?”
Estate agent: “Oh not long at all”
Go into apartment, mummy tenant feeding baby tenant.
Estate Agent: “My goodness your baby’s grown! She was five months old when I saw her last, how old is she now?”
Mummy Tenant: “One year, three months”
So it’s been on the market at least ten months then. Thank you.

As spotted on Facebook, courtesy of property expert Sarah Drane