You *may* have a legal claim for compensation if you can show that the worm was more likely than not in the steak when purchased (rather than getting in later) and, of course, that you purchased the steak from this store. However, you can only sue for--1) unreimbursed or out-of-pocket medical costs;2) lost wages (if any);3) "pain and suffering" for physical illness or disability which interferes with normal life functions or enjoyment, for an amount commensurate with the degree of impairment or suffering and its duration.If you and your husband have not lost wages (or only lost a small amount), have few or no medical bills from this, and his illness is either most emotional/psychological (for example, from the thought of the worm) and/or is fairly short lived, you would not be able to recover enough to justify the cost of a lawsuit.