Love the Estrotect, but have a hard time keeping them on. The calves like to pick on them until they get a good hold and rip them off. Have to check several times a day and replace any missing ones. Tried the glue that the sale barns use, but if its hot, the glue just gets slippery and they slide off. I keep using the patches, because they show up really good from a distance when all is working as it should. Any ideas out there on how to keep the calves off of them? Maybe a little hot sauce? Also, we get the patches from Select Sires cause they're close by.