....it's a?

...Excuse me!....ere...you seem to have...erm!...a.....you know?...on yer back!...you know?.....it's a ....thingy!!....you know!!???

How juvenile!!

Working at the bird hospital again today, when I saw this little(?) fellow, his names Gary and he's a Grey Dagger Moth caterpillar I believe!..but ask him yourself!