The new BorgCo RoboFence looks like a regular 2 metre high chain link (or wood panel) fence mounted on sturdy steel posts.

However, the posts contain a discreet lifting mechanism. On command, as second 2-metre high fence slides up from behind the first one and locks in position, giving a 4-metre high fence. For added fun, it then angles outwards at 30 degrees.

Thus, during the hours of darkness when the Ungodly may be abroad, your fence can be twice as high without being an eyesore or offending local planning regulations. A simple combined daylight sensor and timeswitch automates the process.

For owners of .30-06 rifles equipped with night vision scopes who may be inclined to take a less charitable attitude to anyone who attempts an unauthorized entry to their property, the "sniper" version lowers itself from two metres to one metre when it goes dark.
-- 8th of 7, Mar 28 2012

[+] Please include arrow loops!
-- xandram, Mar 28 2012


Longbow or crossbow ?
-- 8th of 7, Mar 28 2012


The latter, Chinese repeating model I think.
-- pocmloc, Mar 28 2012


// Chinese repeating //

If you're talking about a generously-sized bowl of stir-fried radishes, onions and bamboo shoots in a black bean sauce, accompanied by a large portion of egg fried rice, we feel obliged to point out that the use of poison gas is rather frowned upon.
-- 8th of 7, Mar 28 2012


Don't forget the lazy sniper option, which has one section look torn or damaged and thus open to one meter and the rest still rises to four.
-- MechE, Mar 28 2012


You're not allowed to bait 'em ... it's unsporting.
-- 8th of 7, Mar 28 2012


In some areas growing crops that act as attractants is allowed, and not considered to be inthe same category as baiting, which would be actually spreading harvested crops.

Now, if the lowered section was somehow acting as an energy conservation effort...
-- normzone, Mar 28 2012



random, halfbakery