Here's an extract from The Basics of Hacking and Penetration Testing by Patrick Engebretson, which was published earlier this month:

I guess it's a testament to Burp's popularity that Peter is getting around so much.

Remember, if you do want to change the default Burp Spider settings to submit a different name in your forms, the configuration details are here.

Update:

It seems Peter's fame continues to grow. Someone sent me the following photo showing the result of testing a network device:

If anyone has any further evidence of Peter's travels, email me and I'll post them here.