Board Thread:Questions and Answers/@comment-25252370-20140801124803/@comment-25270312-20140822202157

Shalnark printed out the info for everyone else, and Chrollo may consider all of the Troupe so much a part of him that it's natural to speak that way. Given Chrollo's abilities though, it's extremely possible he has a license. The theory is credible, but I wouldn't say it's confirmed canon.