I wanted to test Xanda - to get a feel for the sort of strengths I was dealing with before I threw myself at her.  I pushed her - she immediately, defensively pushed back.  I admired her for having obvious athletic strength!  We danced around each other and traded arms-length offensive moves for defensive ones.  One of us would grab an arm and the other would retract that arm.  I thought perhaps it was time for me to power myself past Xanda's defenses.  I was amazed at how strong she was holding my arms and keeping me at her arm's length!