In a large casserole or saucepan, cook the bacon over low heat until crisp. With a slotted spoon, transfer the bacon bits to paper towels, blot dry, and reserve.
Add the onion, carrots, celery, bay leaf, thyme and parsley to the fat remaining in the pan. Cook over low heat, stirring occasionally until the onion is translucent, about 15 minutes. You will probably need to stir in an occasional tablespoon of water to avoid browning. Stir in the sugar and the minced garlic and cook 2 or 3 minutes longer.
Add the stock, milk, salt, and tobasco. Bring to a boil over high heat. Reduce the heat as low as possible, cover and simmer 15 minutes or until the carrots are tender.
Stir in the cream and the corn and simmer 2 minutes to combine the flavors and add the lobster. Add the lemon juice. Adjust the seasoning. Off the heat, stir in the herbs.
To serve, ladle into hot soup bowls and garnish with the reserved bacon bits.