That would be because of distance and funky routing.
Being in Scotland there's only so low you can go:
C:\Users\Administrator>ping bbc.co.uk
Pinging bbc.co.uk [212.58.241.131] with 32 bytes of data:
Reply from 212.58.241.131: bytes=32 time=11ms TTL=242
Reply from 212.58.241.131: bytes=32 time=11ms TTL=242
Reply from 212.58.241.131: bytes=32 time=11ms TTL=242
Reply from 212.58.241.131: bytes=32 time=11ms TTL=242
Ping statistics for 212.58.241.131:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 11ms, Maximum = 11ms, Average = 11ms
---------- Post added at 17:22 ---------- Previous post was at 17:18 ----------
Ooh, looks like VM's peering at LINX is overloaded again. Private peering doesn't appear affected. Enjoying your bumps tonight people?