A burgeoning crisis at the Johnson County Animal Shelter has left staff with a dreaded option. If more animals don’t leave the shelter soon, more than a dozen could be euthanized. The community can help avoid this, but the clock is ticking. The shelter is at 140% capacity — an unprecedented crisis. The sheer number of abandoned, abused and neglected animals seeking sanctuary has overwhelmed the facility’s resources, said director Cari Klotzsche.…