Extension for IEnumerable that help to get one item randomly from a collection

ListExtension.cs

using System;
using System.Collections.Generic;
using System.Linq;

namespace List.Extensions
{
    public static class ListExtension
    {
        public static Object GetOneRandom<T>(this IEnumerable<T> list)
        {
            if (!list.Any()) throw new ArgumentNullException();

            var random = new Random();

            var enumerable = list as IList<T> ?? list.ToList();
            return enumerable[random.Next(enumerable.Count)];
        }
    }
}