Firstly, you probably shouldn't insult Gillian by compairing her to me

(j/k)
Secondly, naw, there was no gramatical error (AFAIK), but the conjugated form of lie, lying, has multiple meanings for the same spelling. Its one of the word pairs that I find most confusing (Lie and lay conjucation), even after the thousands of "lie/lay" worksheets we did for homework thoughout school :-P
That, and trying to conjugate die and dye. ...in the words of the great Ralph Wiggum, "Me fail english? That's un-possible!"