Related for Bava Metzia 156:2
הי רבי מאיר אילימא ר"מ דצבע דתנן הנותן צמר לצבע לצבוע לו אדום וצבעו שחור שחור וצבעו אדום רבי מאיר אומר נותן לו דמי צמרו
Which [ruling of] R. Meir [shews this opinion]? Shall we say, R. Meir's [view] in respect to a dyer? For we learnt: If one gives wool to a dyer to be dyed red, but he dyed it black, or to dye it black and he dyed it red, R. Meir said: He must pay him for his wool. R. Judah said: If its increased value exceeds the cost [of dyeing], he [the wool owner] must pay him the cost: if the cost [of dyeing] exceeds the increase in value, he must pay him for the increase.<span class="x" onmousemove="('comment',' B.K. 100b. And it is assumed that R. Meir's ruling is because he regards the dyer as a robber, since he disobeyed the owner's instructions, and therefore he must pay for the wool. ');"><sup>2</sup></span>