Some craft breweries do a good job as well, especially the Yank ones:
"A surprising burst of hops is followed by a distinct overtone of banana, passionfruit, mango like an explosion of sunshine on a fresh Mountain Morning - leading to a satisfying long slightly bitter finish....."
i.e. The brewer got pissed and forgot to set the temperature so it fermented out at 28 degrees for the first three days before anyone noticed, hence the bananas.
"A surprising burst of hops is followed by a distinct overtone of banana, passionfruit, mango like an explosion of sunshine on a fresh Mountain Morning - leading to a satisfying long slightly bitter finish....."
i.e. The brewer got pissed and forgot to set the temperature so it fermented out at 28 degrees for the first three days before anyone noticed, hence the bananas.