Netted Onion sets still being pulled out ??????????

I have two foot high mesh over my onions and still the odd one is no where near where I planted it !

Have I got a ghost or do mice play football at night ?

I spent about a week pushing mine back in. I wish they'd do as they're told and stop trying to escape.

I have a theory which I am currently testing - that if the soil is loose enough the onions will root through it not push themselves out.

This year I planted my onion sets in very loose soil - forked, raked and fluffy. I made a shallow trench with a ridge to one side using a hoe, sat the onions along it, then just tipped the ridge over back into the trench to cover up the onions a bit. I didn't firm them down or water them in.

Currently all but 2 sets (out of 100) are growing well and I haven't had to reseat any. They are now firmly rooted. I 'test pulled' a few to see if they were still loose but they're not. Just need to wait and see how the final onions turn out now......

 found 2 of my peas growing in my onion bed the other day???

subsistence of earth and onions pushing down while putting roots make them pop out. nothing to do with netting. (strangely... you dont need to net onions... there are very less number of takers  )
repeatedly visit the plot and plonk them in. should be allright within a week or two.

Maybe not for you but the pigeons play havoc with onions by us, netting is a must. At least you have explaind why mine are also popping out 

The birds pull them out thinking they're tender greens. Pigeons will do that as well.

I found squirrels do the same, living near a park- they forget where they have buried their nuts and dig randomly before realising the sets are not what they hoped for!
Either net or get used to replanting.

I think you have bought the sleepwalking variety of these, http://chat.allotment-garden.org/index.php?topic=4238.0