Checked the spokes on the youngsters Gasser the other day and found two adjacent spokes loose. No problem I thought, just tighten them up.... Trouble is, the thread on the spokes and/or the thread in the nipples appear to be sh***ed as any attempt to tighten just results in the nipple spinning and the spoke remaining loose. All other spokes appear fine. Any suggestions before I leap in and replace the offending spokes?

Hold the spoke using a pair of pliers or better still a Mole grip then try using the spanner?? I always wrap the spoke with a cloth around the gripped area first so you don't damage it.