If the European trade mark register is correct they filed SHOULD’VE GONE TO SPECSAVERS for the Nice classes 9, 35 and 44 (all related to optics like glasses) and 16 (paper, in this case most likely used for promotion materials).
imho a fine use for the trade mark system (notwithstanding that one can loathe this legal instrument in general)
blargh, just saw the link Cory posted - the legitimacy of “SHOULD’VE” as trade mark for even more Nice classes is, uh, debatable
