Since we on the glasses (initially even 38cl) have shifted from converted or eternally hinfallenden slight "unbreakable" plastic cups, is (tested with 2- and 3-year-old) hardly spilled liquid. A glass has not yet been dropped.
As whiskey glasses they are however in my opinion in the size 20cl not, look more like abridged highball glasses. For the targeted use distilled malt beverage I would prefer 38cl!
