beans growing beyond the top of 7 foot canes what to do?

I have 4 types of climbing bean growing really well but they have all exceeded the 7foot canes.  They appear to be drooping down do I leave them or do I nip out the growing tip?  If I need to nip out the tip how do i recognise it?

Nip them off if they've reached the height of your canes / frame or whatever you have them climbing up.
As stated in the previous post you can recognise the 'growing tip'.
Its the end of the plant furthest from the ground. 

Mine are dangling down off the ends; I hadn't thought to pinch them out. 
Will have a looksee tomorrow.

leave them or pinch out the growing point , your choice , ive never pinched out the growing points ,

I'll leave them!  Unless they start bending the poles down...

i train to crawl back down the pole.. is that not the done thing??

I don't think it makes that much difference what you do; the only possible issue is that wigwams and inverted "V" formations tend to result in bunching and congestion at the top of the poles which makes finding and picking the beans a bit tricky (this is where the "Munty" design comes into its own, of course!)

Youv'e got a giant problem - call Jack