Are you seriously suggesting a curfew for everyone under 25? I’m 19, and I may want to walk through a public open space at night, or wait outside a shop. Do I not have that right, then? I frequently get annoyed at the tendency by the media to make sweeping statements about all "young people", forgetting that the majority of them are perfectly respectable citizens that have a hard time being taken seriously. Indiscriminately punishing everyone in a certain category is hardly the way to run a society; perhaps if you were one of the people having their freedom restricted you’d think differently too.

@octavia: for me the sound didn’t work, I suspect as the speakers I’m using don’t have a very good sound range. You may be younger than you think!

ASBO = Anti-Social Behaviour Order: http://en.wikipedia.org/wiki/Asbo

Perhaps, a new use for the mosquito would be to keep deer out of convenience stores.

My wife says that if my son doesn’t find a job (now that he is graduating), maybe we should get one for the house. But, I think she’s kidding.

Drink culture is pervasive and it needs to be displaced with acceptable teen entertainment, such as coffee shops and arcades, church groups, after-school and extracurricular activities. The mosquito is only one solution to the problem, but it isn’t just convenience stores that need them, it’s estate playgrounds, and they need to be on timers to turn on at dark.

The only acceptable compromise is to have the mosquito off for a couple hours a day after school, or whenever the teens rush the business to buy sodas and food. Then as the evening approaches and they should be home with parents, switch it on. But that is up to individual businesses.

Honestly, if they work well enough to get the innocent kids upset, then something is being done right. That means the ASBO teens are just as annoyed and going elsewhere. If you don’t know what it’s like to have drink/drug scene teenagers plaguing your business, don’t complain about the good that device does.

All cars emit such sounds from their fronts. Inexperienced youngsters’ lives saved. Experienced adults enjoy quiet streets.

Subversive uses?

Drug dealers use them to attract kids without alerting too many disapproving adults. Secret ‘ice cream van’ jingles?

Contrary uses?

10second fuses on terrorist bombs emit these sounds to warn the youth against the sins of their fathers. Youngsters duck/scarper. Adults get blown up.

Sorry, but it’s diffult thinking of a situation in which you’d want to dispel youth for positive reasons whilst retaining adults for negative reasons. Perhaps there’s a nicer example? Maybe play these noises at a Barry Manilow concert to save inquisitive youngsters from a horror not to be experienced before pensionable age?