Dust-to-stellar mass ratio as a function of UV-to-optical colour of the GRB 111005A (black square), GRB 980425 host (red square; Michałowski et al. 2014b), LMC (open red square; M_∗ from Skibba et al. 2012 and M_d derived applying the method of Bianchi 2013 to the data from Meixner et al. 2013), KINGFISH galaxies (blue plusses; Kennicutt et al. 2011), and the averages of other local galaxies in eight colour bins (Table 1 and Fig. 4 of Cortese et al. 2012). The solid line represents a linear fit to the data. Both GRBs 111005A and 980425 are a factor of ∼2 below the trend. This figure is reproduced from Michałowski et al. (2014b).