A ripe and unripe fruit with ruler and color reference. These were found under the tree, near the immature vine seedlings.  The gardeners keep the area under that tree clear and often arrange their day to eat lunch there.  It seems plausible that these fruit are the direct descendants of someone's lunch....
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/51035786238@N01">Ross Berteig</a> from Monrovia, California, USA
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/51035786238@N01/23334404/">20050703-133304</a>