In the process of developing a site for a client, they insisted on coming in for a meeting to discuss changes. The client arrived at the office with a laptop and a length of cable over their shoulder. In their hands was a router.
Me Why have you brought that router and the power and ethernet cables?
Client: So I could get on the internet and show you guys the site during the meeting.
We didn't bother explaining that we could provide WiFi access. What is more shocking is this client managed to submit a business proposal and get funding to start a business in the first place.