Digging out old sleepers

[pwerda]

I'm currently building replacing an old sleeper wall with blocks. My problem is I have 2 sleepers which are deep in the ground (about 4-5 cms exposed) and am unable to lever them out, There is a concrete slab on one side of the sleepers and about a metre high wall of earth on the other. I removed other sleeper by lever out using a crowbar, but these are too deep for me to get out.
If anyone has had some experience or ideas, I'd really appreciate knowing

[JDub]

Start digging ;)

IF they are in a mile, you might get away with digging down around them and then cut them off below ground level

[Bleedin Thumb]

Yep break em up into splinters, attack the buggers, kill, kill, kill.:D
Get those white shoes off, put on some steel caps, spit on your hands....
Its always that last one that does you in.:(