Risk taking in inter-species sport

Are event riders taking their thrill-seeking too far?  This interesting paper discusses (link below) http://irs.sagepub.com/content/early/2013/12/10/1012690213513266.  

Winter Welfare

If your horses are healthy they will benefit physically and mentally if you keep them unclipped, unrugged, outdoors with good natural shelter, and in a familiar social group. Oldies/arthritics/poorlies may benefit from a rug, always take individual needs and environment into account.  See this well-referenced article below for more info. http://academialiberti.blogspot.co.uk/2012/02/thermoregulation-in-horses-in-cold-time.html?m=1

Social cohesion in horse groups

Horses evolved to live in highly social groups; however in many countries it is traditional to keep them individually in stables, or turned out singly in paddocks.  It is becoming increasingly understood that this causes health and behaviour problems, including aggression.  In contrast, aggressive encounters are rare in properly introduced, established groups, where management meets