Stellar measurements in Sculptor (blue circles) and the Milky Way (gray squares) of abundance ratios of sulphur to other α-elements: O, Mg, Si, Ca, Ti, and [S/(Ca + Ti)] = ([S/Ca] + [S/Ti]). Left panels show individual measurements while right panels show binned data, where the x-axis error bar shows the size of each bin and y-axis error bar is the error of mean. We note that the range on the y-axis is not the same in left and right panels. References: Sculptor: Skúladóttir et al. (2015b) (1 star), Skúladóttir et al. (2015a) (S), Skúladóttir et al. (2017) (Ti), Hill et al. in prep (Mg, Si, Ca). Milky Way: Chen et al. (2002), Reddy et al. (2003), Chen et al. (2003), Cayrel et al. (2004), Nissen et al. (2007), Nissen & Schuster (2010), and Spite et al. (2011).