Lidl have some very bright (60+lm) torches. I just bought one, put the batts in and it didn't work. Took it back.
By the time I got there the reason it didn't work was apparent.. the whole thing was too hot to hold as there was a short in it. Good job it wasn't a 10 minute walk or things might have got serious.
Moral.. always remove the batts from faulty products.